Re: Questions about HEAP tables
As you write your code in somewhat pseduo code format, I can't comment on the exact syntax. You may use PERL-DBI-DBD:MySQL to implement your code. However, it may some problems with your logic. First of all, if the quote_for_family table already exist, the create table sql do nothing and it definitely not something you wanted. You may use INSERT instead of CREATE in this case. You may experiment with other logic. If you want further help, you may email me your actual code. For temporary and heap, they are two different table attributes but often use together. Temporary means the table will automatically drop after the connection close and will not appear in other connections. Heap means to create table in server's memory. So, they may use together to make high access speed temporary table. Of course, heap table will eat your server RAM. Best regards, -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com Hi All, After googling around and checking out the archives I still haven't found the exact answer to my following question: First off the goal is to give a family multiple quotes from different companies for insurance based on several factors: age, length of coverage and coverage limits. All the different rates for different companies will be in a rate table that I will have to query to get the correct premium per person and then group the resulting recordset by company and sum the premium. So I figure I have to do something like: for each member in $number_of_family_members CREATE TABLE IF NOT EXISTS quote_for_family TYPE=HEAP SELECT * FROM rates WHERE age =minimum_age AND age =maximum_age AND limit =minimum_limit AND limit =maximum_limit AND length_days maximum_days next member SELECT company_name, sum(rate), plan_name FROM quote_for_family GROUP BY company_name DROP TABLE quote_for_family And if all is well I have a list of all the different companies' plans with a the premium totaled for all family members. What makes this a little more interesting is that I want to do it from a Perl script - from want I've seen this looks possible. What I'm wondering is: Does this look like the right way to tackle the problem? Should I use a HEAP table or TEMPORARY table to do this? Its going to be on a webserver with hopefully some steady traffic so performance is a concern. Any help is greatly appreciated, Justin - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Using ssh tunnel and mysql
What does it really matter is whether you have create mySQL user that allow access the database from the SSH server. Please note that localhost, 127.0.0.1 or the machine ip address will be treated as different entries by mySQL. -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com On Fri, Mar 07, 2003 at 05:37:38PM -0800, LZ Orders wrote: Hi. I wanted to connect from a client machine to a MySQL server using ssh. I execute the following on the local machine (the server is foo.bar.com): % ssh -n -N -L 3307:foo.bar.com:3306 foo.bar.com I then try to connect from the local machine with: % mysql -h localhost -p 3307 --user=me --password But after prompting me for my password, MySQL denies me access. What if you use 127.0.0.1 instead of localhost? Jeremy -- Jeremy D. Zawodny | Perl, Web, MySQL, Linux Magazine, Yahoo! [EMAIL PROTECTED] | http://jeremy.zawodny.com/ MySQL 4.0.8: up 32 days, processed 1,006,604,456 queries (357/sec. avg) - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Temporary Tables
Paul is right. I would like to add a small remark, it should better to drop the temp. tables before closing your script. This can free up resources. I had a painful experience that I had created hash temp. tables without dropping them. This lead to memory leak. Regards, -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com At 23:19 + 3/4/03, Mamatha Balasubramanian wrote: Thank you once again. I have a web-interface that does search on a given text and I would have a script that creates a temporary table. So according to you, in my script, I just to need create a temporary table and not have to worry about another client using the same web interface (and thereby using the same program). Can you please elaborate a little more on this? Sure. You are incorrect. :-) That is, you're making an assumption that cannot necessarily be made. If you can guarantee that the web script will establish a new connection, and the connection will terminate when the script ends, you can indeed do what you describe above. But you *cannot* do that if you're running your script in an environment that uses persistent connections that may be used by successive instances of the script. PHP persistent connections fall into this class, for example. Several requests might be served by the same instance of the web server process, and you don't know that one request won't be getting the connection used by a previous request. In that case, the connection won't have closed, and the TEMPORARY table won't have disappeared. You can guard against this by issuing this query before creating the TEMPORARY table: DROP TABLE IF EXISTS tbl_name Thanks, Mamatha From: Paul DuBois [EMAIL PROTECTED] To: Mamatha Balasubramanian [EMAIL PROTECTED],[EMAIL PROTECTED] Subject: Re: Temporary Tables Date: Tue, 4 Mar 2003 17:06:30 -0600 At 23:00 + 3/4/03, Mamatha Balasubramanian wrote: Hi, I would like to know how MySQL handles multiple temporary tables? 1. Can multiple temporary tables be created at the same time? 2. If so, how does MySQL differentiate them - do we need to explicitly give them different names inorder to identify them or does MySQL provide a timestamp (or use some other means) to identify the tables? You can create multiple temporary tables, but they must have different names. A TEMPORARY table can have the same name as a non-TEMPORARY table. The non-TEMPORARY table is hidden to the client that creates the TEMPORARY table as long as the TEMPORARY table exists. A second TEMPORARY table with the same name cannot be created. This is on a connection-specific basis. Two clients each can create a TEMPORARY table with the same name. Only the table created by a given client is visible to that client. I use MySQL 4.0.7 on Red Hat. Thanks, Mamatha - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: mysql encripted password from perl
change $sql .= VALUES(?, ?); into $sql .= VALUES(?, password(?)); Please note that password is a mySQL function and not a PERL function. So, you need to use the password function again in verify the password. Regards, KH I have perl code like my $username = $query-param(username); my $password1 = $query-param(password1); my $sql= INSERT INTO apidbusers ; $sql .= VALUES(?, ?); $sth-execute($username, $password1); In this way, password1 will be in mysql table as plain text. how can i let it appear in mysql table as encripted? Thanks - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php $sql .= VALUES(?, ?); - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: phpMyadmin
Are you using a RedHat system. In RedHat system does not install php mysql support by default. You may install php-mysql rpm from redhat distribution disks. Regards, -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com I have downloaded phpmyadmin, and installed, well not really, I placed it under /var/www/html, and decompressed therr, it generated its own directory, and so, well I am getting an error msg: cannot load MySQL extension, please check PHP Configuration. when I check the docs I get this solution To connect to a MySQL server, PHP needs a set of MySQL functions called MySQL extension. This extension may be part of the PHP server (compiled-in), otherwise it needs to be loaded dynamically. Its name is probably mysql.so or mysql.dll. phpMyAdmin tried to load the extension but failed. Usually, the problem is solved by installing a software package called PHP-MySQL or something similar. so from where can I download this PHP-MySQL? or where can I get mysql.so? and how do I tell php to load it? thanks in advance. another qquestin and please for give me in advance, but this is something I .. well which is mysql adminniistrative uuser? is it mysql? I am running linnux rethat 8, and installed mysql from the disctibution cd rom. I ask this because in thee installation instructions for phpmyadmin says that I have to type the root myslq user name and mysql host is mysql host localhost? thanks in advance. - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
re: phpMyadmin
phpMyAdmin can admin. database that is not on the same machine. The only requirement is that machine can access the MySQL database to be admin. Which usually means that a user name and a ip address on the MySQL user table. However, I don't think that it is appropiate to have a notebook to install a phpMyAdmin and admin. a remote database. First of all, the notebook should have a web server installed. Secondly, there may be a security loop holes to have a remote user for a MySQL database. Esp., if the notebook used for the programmer on the move. He may just access the phpMyAdmin on the host by IE. If further security is required (esp. on the move), you may consider to have SSL installed. You may also consider some secure shell such as ssh which can also provide secure connection. Regards, -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com Using PhpMyAdmin for administering MySQL, can this product be installed on a remote system? We currently have it installed on the same server as MySQL, but now the programmer wants it on his Laptop. Or is there another product that can manage a MySQL database from either a Windows or Linux laptop/desktop. Thanks Jon L. Miller, MCNE, CNS Director/Sr Systems Consultant MMT Networks Pty Ltd http://www.mmtnetworks.com.au I don't know the key to success, but the key to failure is trying to please everybody. -Bill Cosby - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Strange BUG? with a working table
It seems that you have reached the 2G file limit with many Linux system. I am not familiar with SuSe. As I know, you may try to use raid option. You may refer to MySQL doc. on 'create' for details. KH Dear Ladies and Sirs, I have a problem to create a tables duplicate with: CREATE TABLE new_1 SELECT * FROM output_1; The table output_1 has this structure: Field TypeNullKey af_1 int(11) YES MUL af_3 varchar(255)YES af_2 varchar(255)YES af_23 varchar(255)YES af_10 varchar(255)YES af_11 varchar(255)YES af_10001 varchar(255)YES af_16 varchar(255)YES af_9 varchar(255)YES af_8 varchar(255)YES af_30 varchar(255)YES af_24 varchar(255)YES af_52 varchar(255)YES af_300varchar(255)YES af_53 varchar(255)YES af_54 varchar(255)YES af_18 varchar(255)YES af_5 varchar(255)YES af_25 varchar(255)YES af_26 varchar(255)YES af_27 varchar(255)YES af_28 varchar(255)YES af_55 varchar(255)YES af_56 varchar(255)YES af_57 varchar(255)YES af_58 varchar(255)YES dub_flag int(11) YES MUL dub_kopf int(11) YES dub_purge int(11) YES Type = myisam MySQL = 3.23-41-log OS = SUSE 7.3 Kernel 2.4.10 FS = Reiser This table has about 2,5 million rows and it's file-size 530543 K. When i tried the above statement i got error 27 when the new table reached a size of more then 200 K ! I exported the file to csv and everything seemed fine. I imported again into a new table via LOAD DATA INFILE ... and the same error occured. Is there anyone that has a clue, why this table is changing size with this. Could it be that there is a 'forbidden' character inside the data ? I now try to manage with dump-file but I'd like to know how I can fix the problem itself, because if I join this table with another, the same strange behaviour occurs. CHECK TABLE (extended) said the output_1-Table is OK. please help Klaus Topaktuelle Consumer-Adressen anmieten www.consumeradressen.de Diese Mail ist von: Deutsche Post Direkt GmbH Beleglese Center Mannheim Klaus Franz Manager Abgleichsysteme Willy-Brandt-Platz 13 Tel. 06 21.129 56 436 68161 Mannheim - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Strange BUG? with a working table
Compare tables with : =show create table t1; =show create table t2; Check table type. Or use dump command from shell: shellmysqldump -pPassword --user=username db_name t1 t1.sql mysqlrename table t1 to t2; shellmysql -pPassword --user=username t1.sql db_name Or try to set MIN_ROWS = 2,5 million. Dear Ladies and Sirs, I have a problem to create a tables duplicate with: CREATE TABLE new_1 SELECT * FROM output_1; The table output_1 has this structure: Field TypeNullKey af_1 int(11) YES MUL af_3 varchar(255)YES af_2 varchar(255)YES af_23 varchar(255)YES af_10 varchar(255)YES af_11 varchar(255)YES af_10001 varchar(255)YES af_16 varchar(255)YES af_9 varchar(255)YES af_8 varchar(255)YES af_30 varchar(255)YES af_24 varchar(255)YES af_52 varchar(255)YES af_300varchar(255)YES af_53 varchar(255)YES af_54 varchar(255)YES af_18 varchar(255)YES af_5 varchar(255)YES af_25 varchar(255)YES af_26 varchar(255)YES af_27 varchar(255)YES af_28 varchar(255)YES af_55 varchar(255)YES af_56 varchar(255)YES af_57 varchar(255)YES af_58 varchar(255)YES dub_flag int(11) YES MUL dub_kopf int(11) YES dub_purge int(11) YES Type = myisam MySQL = 3.23-41-log OS = SUSE 7.3 Kernel 2.4.10 FS = Reiser This table has about 2,5 million rows and it's file-size 530543 K. When i tried the above statement i got error 27 when the new table reached a size of more then 200 K ! I exported the file to csv and everything seemed fine. I imported again into a new table via LOAD DATA INFILE ... and the same error occured. Is there anyone that has a clue, why this table is changing size with this. Could it be that there is a 'forbidden' character inside the data ? I now try to manage with dump-file but I'd like to know how I can fix the problem itself, because if I join this table with another, the same strange behaviour occurs. CHECK TABLE (extended) said the output_1-Table is OK. please help Klaus Topaktuelle Consumer-Adressen anmieten www.consumeradressen.de Diese Mail ist von: Deutsche Post Direkt GmbH Beleglese Center Mannheim Klaus Franz Manager Abgleichsysteme Willy-Brandt-Platz 13 Tel. 06 21.129 56 436 68161 Mannheim - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: MySQL on windows
In my experience, Perl + DBD-mysql will be the most easy tool for UNIXer (Linuxer). Especially, if you plan to write some non-GUI based system service program. Best regards, KH Depends on what you are experienced with on win platform I would of thought. Something like vB or Delphi is very quick and easy to use. Jerry - Original Message - From: Simon Windsor [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, February 24, 2003 12:28 PM Subject: MySQL on windows -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi I am used to using/accessing MySQL on Unix, but I have to write a small client application on Windows, to record and log activity to a remote MySQL database. The options that I have appear to be - - Perl + DBI+DBD-ODBC - - Perl + DBI+DBD-mysql - - Visual C++ + ODBC - - Visual C++ + MySQL++ can anyone advice me on the best to use, for stability, and no memory leaks etc. Many thanks Simon - -- Simon Windsor Email: [EMAIL PROTECTED] Tel: 01454 617689 Mob: 07720 447385 -BEGIN PGP SIGNATURE- Version: GnuPG v1.0.7 (GNU/Linux) iD8DBQE+Wg/bSJvgVrMNWjYRAkNvAJ0VKk1D0t7EOEigG3FssqK1ahEz3wCdEvXd H7oZniZ/Ay5Yyk/jPMbAhUE= =rOZS -END PGP SIGNATURE- - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: inquiry
Your problems are really very common when switching from MS to Linux. Don't worry, as your experience with Linux grow all these problem will gone. First of all, MySQL database work in a Client/Server fashion. It means that you need to get the server up and running. To doing that, you can type the following command /etc/init.d/mysqld restart Don't panic if you see 'fail' for stopping the mysql service. It just tell you that mysqld not already started. You may also use the command 'setup' - Services to make mysqld auto. start when linux start. After that you can use the 'mysql' command to connect to the database. For a new setup you may use mysql -u root You may refer to the manual after these steps. Best regards, KH I have installed mysql form the rpm files that are on rpm finder, acording to the installation it is working, and if I check with redhat-config-services it is running, how do I get mysql on the path so I can call mysql from any where? btw after checking my pc well I am too new to linux so sorry if the question is not relevant but where is mysql executable file? I know the server is running but just beause I see it running on redhat-config-services but I do not know where are the files.. acording to mysql manual there is a test database.. where? cheers - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
RE: Speed improvement with packet proceeding!?
I know very LITTLE about the internal working of MySQL. So, I am not the right people to comment it. However, from my experience MySQL is quite optimized for some operation but not for all. I think Julian actual suggested a very good idea on the searching optimization for single user. At present, I don't have time to have a serious examination on all their implications (esp. on multi-user cases which is the actual working environment of MySQL). May Julian tell me more about your suggestions' implications on multi-user environment? For example, 2 or more processes updating the same table at the same time. Best regards, KH On 23-Feb-2003 Julian wrote: Speed improvement with packet proceeding!? 1. Packet proceeding: I'm not quite sure is it possible with Mysql but it could be easy to be implemented. For example: select * from table where id=52 and name='some' select * from table where id=23 and email='[EMAIL PROTECTED]' these two queries select row(s) from table 'table' which means that these two queries could be tested simultaneously, so database file will be proceed only once. What about the case where one (or both) selects fail? And how would the application tell that there were multiple rows where id=23 and email='[EMAIL PROTECTED]' ? If you *know* that these two rows exist and unique then: SELECT a.*,b.* from table as a, table as b WHERE a.id=52 and a.name='some' AND b.id=23 and b.email='[EMAIL PROTECTED]' would do the same thing. snipage In fact I'm not talking only about 'select'-s but any tables examination/traverse (i.e where clauses etc..), so queries like these could be also speed up: update table set data='test' where name='some' select * from table where id=10 What would be the sensible error message if your update failed but your select succeeds ? What would be the expected value of mysql_numrows() ? And what if there are multiple rows where id=10 ? snipage 2. Bulk update/delete etc.. Take a look at this update query (not implemented.. yet!) update table1 set column=value,... where clause limit #, update table2 set (or delete from table1 where clause limit rows, delete from table2 where clause...) The same question: How would a program tell which statement failed? snip again Have I a good point here? Any ideas and discussion about these suggestions? You'll need to rethink the failure modes. What you're suggesting might be useful in certain special case(s) but badly fails the general case. Regards, -- Don Read [EMAIL PROTECTED] -- It's always darkest before the dawn. So if you are going to steal the neighbor's newspaper, that's the time to do it. (53kr33t w0rdz: sql table query) - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Is SQL right for me?
It is really a good question. I don't think MySQL alone will suit your need. As far as I know, most people (including me) will use programming languages like PHP, C, Perl, VB etc. to access MySQL database. If you are not planning to learn a programming language, you cannot do much with MySQL. The good news is you can use some other tools to work with MySQL. I am using phpMyAdmin as my frontend tools. There is a lot of other tools available. In a more general sense, SQL is designed for computer novice to manipulate database. Unluckily, this objective is never achieved. So, SQL is some what restricted to programmer or at least tech. people. Regards, KH So what is the actual question ? If you don't have the software, surely you should get it and read the manual if that is the best way you learn ! Jerry - Original Message - From: Marijka Walker [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, February 20, 2003 6:01 AM Subject: Is SQL right for me? I'm need to create a database for the first time in 10 years and the wizard aspect of Access 2002 doesn't work for me - it's too much help and slows me down! I'm used to creating databases and reports almost from scratch with dBase IV and Paradox, and easily learn software by reading manuals, so is SQL the answer? Please note that I am strictly pc-based and have never programmed beyond batch files in DOS. Since I don't have the software, I didn't join the list, so please mail answers to [EMAIL PROTECTED] Thanks in advance for your advice! - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Web interface
I am using phpMyAdmin. But it is written in php. Regards, KH Hi all! I started using MySQL about two months ago (and I already love it!) and I'm new to this list... I would like to know if there's some web interface for MySQL management that has been released as open source. Preferably this should be in ASP 3.0 or ASP .NET languages, but I'll appreciate to know any other language available. Thank to everyone who'll spent time to send me a fee-back. Regards, Michele http://www.devspy.com/ - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: What is needed for ODBC?
All you need to do is set up a MySQL user that allow the Windows box to access the MySQL database. Regards, KH Hello, I hope it is okay to ask this here. I have a MySQL server running on Slackware 8, and I would like to access it from a Windows box using Excel (for now). I'm downloading the ODBC driver for windows, but is there anything I need to do on the MySQL server side? I'm a bit confused about that. Thanks in advance! Bryan - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Is this a bug?
This is really not a bug. It is only a feature. Besides trimming of trailing spaces, MySQL also perform case-insensitive match. ie. SELECT 'abc' = 'ABC'; will return true. In order to turn off this feature, you should add the keyword 'binary'. Examples: SELECT binary 'abc' = 'ABC'; will return false. SELECT binary 'abc' = 'abc '; will also return false. Best regards, KH In the last episode (Feb 21), Zhestkov Victor said: I have a table with varchar column and when I execute SELECT query like that: SELECT * FROM sometable WHERE somecolumn='abc '; it returns records which contain records with bo 'abc ' value, and which are only 'abc'. Thry this SELECT 'abc' = 'abc '; it returns true. I think it rather strange. I have mysql installed from Debian 3.0 r0. From the docs: * All string columns, except `BLOB' and `TEXT' columns, automatically have all trailing spaces removed when retrieved. For `CHAR' types this is okay, and may be regarded as a feature according to ANSI SQL92. The bug is that in MySQL Server, `VARCHAR' columns are treated the same way. It's mentioned in 3 other places as well. -- Dan Nelson [EMAIL PROTECTED] - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Archive on remote Machine.
It will then be a networking problem. As far as I know, you may need a networking file system like NFS or Samba. You should mount your remote machine as a network drive. Then you can use mysqldump to make a backup but redirect the output to the network drive. There may be other methods. In fact, I have a project that has more complex remote backup requirement. I am working on it using C right now but not yet completed. Regards, Thanx for the suggestion. Is there any way i can Archive data to remote machine where MySQL is not installed. Anis KH Chiu [EMAIL PROTECTED] Wednesday, February 19, 2003 8:46:46 AM You may try the following command mysqldump -u your user name -p password samp_db | mysql -h your remote host name or address samp_db -u your user name -p your password Please also note that samp_db must be exist on your remote machine. Of course, you should sub. samp_db with your to be achieve database name. Regards, Hi, I use Select * into outfile filepath from table to archive the database. Is there any way to archive this into a different machine. (Not current machine) Yes Mapping to new machine and then giving path is an option. Any other opton.? Anis - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Question about auto-increment columns
I think you have no need to worry overflow if you use int type. You may have added assurance if you also define it as unsigned. I just listed the max. of different unsigned integer type for your reference tinyint 255 smallint 65535 mediumint 16777215 int 4294967295 bigint 18446744073709551615 Clearly int type will be sufficient for most practical use. Regards, Hello. I'm very new to MySQL (and SQL databases at large), so please apologize if I'm just missing an obvious point, or if it has already been discussed before. As I understand, auto-incremental columns (quite useful for primary indexes) are always incremented. Even if rows are deleted, those counters always keep growing. But a frightening thing is this snippet of the documentation : The behavior of the auto-increment mechanism is not defined if a user gives a negative value to the column or if the value becomes bigger than the maximum integer that can be stored in the specified integer type. The former part is obvious, but the later is not. Does it mean that MySQL databases will definitely stop working at a random date (when an auto-incremental column will overflow) ? How to cope with this ? Or to detect when an overflow will occur (do we need to always BEGIN; SELECT MAX(id) ... ; then only INSERT and COMMIT if the result is lower than the max value the type can handle) ? Or is there a way to recompute all primary keys (and sync foreign keys) by filling unused gaps ? Best regards, -Frank. -- __ /*- Frank DENIS (Jedi/Sector One) [EMAIL PROTECTED] - *\ __ \ '/a href=http://www.PureFTPd.Org/; Secure FTP Server /a\' / \/ a href=http://www.Jedi.Claranet.Fr/; Misc. free software /a \/ - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Sequential read on a file
You are right. read previous simply not exist. I think this is due to both historical reason and 'client/server model'. In fact, 'read next' is available by reading next row in a query. However, the record cursor is one direction only and cannot be read back. In my experience, I will store the row id of the previous record and perform another sql query if a back operation is required. Regards, Hi, Newbie here so please bear with me. I am running MySQL 3.23.22 with PHP4.01 on WinNT client / Linux host, everything is working okay and I'm just getting to grips with some basic database handling. Although I can use mysql_query to get a list of records using Select * from `mydata` - for what we are looknig at, we also need a basic Next/Prev stepping capability on a record per record basis. I realise this can be done just grabbing all records and then moving through the rows, but we are also looknig at picking up each record individually. I have had some success using count(*) to get the last record, then stepping through with limit $x,1 in the select, where $x is decremented / incremented based on which button is pressed. I cannot seem to find any simply read next or read previous type command though. Is the way I am going about it right or is there a more simple/logical method? My main concern is that, with the key being auto-increment, as records are added and removed from the database, as simple +1/-1 may fall over. -Colin - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: License question
As far as I know, if you only require MySQL as an option or just an added features, your company do not need to purchase a license. KH Otherwise, you may ask whether MySQL is an option or not. It means that if your logs and related information can go to other mean such as a text file then you are no need to buy license. In theory we can find option for any db appliance, let say, we can store data in regular files. However, if your program can't run without MySQL database, I think license will be required. I can for example, use PostgreSQL, but main key for me is to have multiplatform database. __ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: sql join help?
Multiple table update is only supported from 4.04 or above. If you are using 3.x, I think you should put the result into another table, delete MSI_List and rename the table to MSI_List. I would also very interested to know whether there exist a more elegant solution for 3.x. Best regards, sql I have a zip code db named MSI_Zipcodes that contains city state zipcode (index) I also have a db named MSI_List that contains ID (index) email city(empty) state(empty) zip My problem is: How can i bring the proper info from MSI_Zipcodes(city and state) and enter it (city and state) into the empty fields of MSI_List in accordance with the zip code in MSI_List? Thanks in advance! Todd Clemmer - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Lost connection to MySQL server during query
Assume the ip address of your remote machine is 192.168.0.88 You should perform a nslookup 192.168.0.88 on your LOCAL machine that hold the mysqld If it cannot resolve into a symbolic name then you will get into trouble. Add an entry to /etc/hosts or your DNS will solve the problem. Regards, Hi All I just installed a RedHat Linux 8.0 box with mysql-server-3.23.52-3 mysql-3.23.52-3 mysql-devel-3.23.52-3 Changed the password for root using mysqladmin logged in using a mysql client (locally) and mysql GRANT ALL ON *.* TO araheja@'%' IDENTIFIED BY 'amanraheja'; I DID THE SAME STEPS ON ANOTHER BOX WITH Linux Slackware box with mysql 3.23.39 When I try to login using a remote client in both the servers, Slackware box allows me but RedHat BOX gives me the following error Lost connection to MySQL server during query I also downloaded and installed mysql-server-3.23.54a-1 mysql-3.23.54a-1 mysql-devel-3.23.54a-1 Still the same problem. Any suggestions? Thank you in advance Regards -- Aman Raheja AGF Inc. - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Joining multiple tables results not complete
You should use LEFT JOIN. Regards, I am perplexed trying to retrieve all the rows I need in the query I'm doing. I have a table with keeping track of people using ID numbers as the primary key and another table with coupon numbers and a reference to the first table. But not all the second table is going to have correlating matches to the first table. So, in other words not all people have a coupon number entered into the database. I run the query: SELECT table1.id, table2.coupon FROM table1, table2 WHERE table1.id=table2.person_id; I expect back a report of the 213 rows in table1 and their matching coupon # if they have one. Instead, I get 174 rows and THEIR matching coupons but no results from the others. I want to write a query that will return the id's from table1 and the table2 coupon regardless of whether the table2.person_id matches table1.id. How do I do this? Thanks, Dean - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Is this query possible...
Yes. You can use INSERT INTO table select from .. Regards, All, Is this query possible to do: I am going to select an id from a table SELECT order_id FROM orders WHERE order_start = 1324 I will then use the order_id from this query and insert it as well as some others values I have into another table. So in summary, I want to perform a SELECT and INSERT in the same database query. Can I do it? If this matters, I will be doing this in 2 different applications. 1 database is MySQL, and the other is MS Access. -jonathan - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: How to determine foreign keys? Meta data?
Dear Jeff, There are many ways to lookup MySQL metadata. I was used to familiar with them. Unluckily, I am 'spoiled' by phpMyAdmin recently. I strongly recommend you to have a try with phpMyAdmin. Regards, Hello all. I've only been using MySQL for a few days, but I'm experienced with Oracle. So consider this a sort-of-newbie question. Is there any way to determine what foreign keys exist on a table? I have tried myisamchk, describe, show index, show create table, all to no avail. Is there complete access to the meta-data? (I'm using version 3.23.55, by the way.) Thanks! :' ) = :' ) Jeff Epstein [EMAIL PROTECTED] http://www.jeffyjeffy.com .. __ Do you Yahoo!? Yahoo! Shopping - Send Flowers for Valentine's Day http://shopping.yahoo.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: varchar and java string in sql query ?
Hi,
I am not fimilar with jdbc. But as a general prinple, you should quote your
string expl. and it is nearly a must for all language to handle SQL query.
May be you should try str='id' instead of str=id. In some language, you
must use str = \'id\'.
Please check jdbc docs.
Regards,
I and using mysql-jdbc to do some program.
I can insert record to my db by following code:
-
stmt.executeUpdate(insert into apidbusers values('id',
'jp','zhu','em1','jian180'));
---
but
if i use
--
String str=id;
stmt.executeUpdate(insert into apidbusers values(str, 'jp',
'zhu','em1','jtan180'));
-
it fails.
why? how can i use java java string to insert a record?
Thanks
Jianping Zhu
Department of Computer Science
Univerity of Georgia
Athens, GA 30602
Tel 706 5423900
-
Before posting, please check:
http://www.mysql.com/manual.php (the manual)
http://lists.mysql.com/ (the list archive)
To request this thread, e-mail [EMAIL PROTECTED]
To unsubscribe, e-mail mysql-unsubscribe-
[EMAIL PROTECTED]
Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
--
Yours,
KH Chiu
CA Computer Consultants Ltd.
Tel: 3104 2070 Fax: 3010 0896
Email: [EMAIL PROTECTED]
Website: www.caconsultant.com
-
Before posting, please check:
http://www.mysql.com/manual.php (the manual)
http://lists.mysql.com/ (the list archive)
To request this thread, e-mail [EMAIL PROTECTED]
To unsubscribe, e-mail [EMAIL PROTECTED]
Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Oh GAWD somone HELP :)
Sorry! I have made a mistake. Are you sure the host you connected from can be reservely lookup on 192.168.0.2? This is really important and have brother me for a period of time. Regards, Well thats the thing, I did an more than one user that was allowed to connect TO 192.168.0.2 from various hosts on my network and all hosts can reverse lookup from my dns server. no good - Original Message - From: KH Chiu [EMAIL PROTECTED] To: Poodle [EMAIL PROTECTED]; [EMAIL PROTECTED] Sent: Tuesday, February 18, 2003 2:53 AM Subject: Re: Oh GAWD somone HELP :) You should add a user who allow to connect from 192.168.0.2 before you can connect to MySQL remotely. Further more, make sure that your host can reverse lookup 192.168.0.2. This can be done by add an entry in the /etc/hosts or create a DNS entry. Regards, Just installed mysql nice one i though set it all up read the nessasary docs nice one i thought tried to connect remotly [root@tasha root]# mysqladmin -h 192.168.0.2 version -uroot - ppassword mysqladmin: connect to server at '192.168.0.2' failed error: 'Lost connection to MySQL server during query' oh bugger played around with the configs for a few hours tried everything i could think of read some more docs tried everything i could think of again still the same any ideas? - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
re: Limit the database size
Thank you very much for your information. Can you tell me more how to limit size of directory in Linux? I can only set quota for users or groups but not for directory. Thank you very much. On Tuesday 18 February 2003 04:26, KH Chiu wrote: I am planning to offer a free service that allow users to use my server to learn php and MySQL. I am a bit worry about if one of users (either intentionally or unintentionally) get into infinite loop with insert statement. It will quickly eat up the disk space and make my server unfunctional. So is there any way to limit the size of individual database? With MySQL - nope. You can limit size of the database directory. -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.net http://www.ensita.net/ __ ___ ___ __ / |/ /_ __/ __/ __ \/ /Victoria Reznichenko / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.net ___/ www.mysql.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Limit the database size
Thank you very much for your information. I have encountered another problem if I use this approach. The problem is I can change the database directory to another group which has quota. However, whatever mysql create new table, it will use its configrated group (namely 'mysql' in Redhat default rpm). I think I can perform chgrp by a cron job at a regular interval. However, I will come back to my original problem that I can't limit disk usage at real time and a single program fault will make my server unfunctional. Thank you again for your valuable information and can you give me more help. Best regards, -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hello KH, Tuesday, February 18, 2003, 2:15:47 PM, you wrote: Thank you very much for your information. Can you tell me more how to limit size of directory in Linux? I can only set quota for users or groups but not for directory. very simple chown or chgrp the dir and set the quota for that group/user example: chgrp -Rv quota100MB /home/slpl/ quota100MB meaning a group which will assign a quota of 100MB if the group don't exist create one P.S. This was done by reading the man Thank you very much. On Tuesday 18 February 2003 04:26, KH Chiu wrote: I am planning to offer a free service that allow users to use my server to learn php and MySQL. I am a bit worry about if one of users (either intentionally or unintentionally) get into infinite loop with insert statement. It will quickly eat up the disk space and make my server unfunctional. So is there any way to limit the size of individual database? With MySQL - nope. You can limit size of the database directory. -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.net http://www.ensita.net/ __ ___ ___ __ / |/ /_ __/ __/ __ \/ /Victoria Reznichenko / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.net ___/ www.mysql.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - -- Best regards, Solid mailto:[EMAIL PROTECTED] -BEGIN PGP SIGNATURE- Version: GnuPG v1.2.1 (MingW32) iD8DBQE+Ukgq2PEgI0nAJngRApOdAJwKaXPMfZB2DVsdDTXp1mp/BxDCqQCcD3Y6 AkLZAP16pGRHRb+t+O07ZhA= =maAp -END PGP SIGNATURE- -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Archive on remote Machine.
You may try the following command mysqldump -u your user name -p password samp_db | mysql -h your remote host name or address samp_db -u your user name -p your password Please also note that samp_db must be exist on your remote machine. Of course, you should sub. samp_db with your to be achieve database name. Regards, Hi, I use Select * into outfile filepath from table to archive the database. Is there any way to archive this into a different machine. (Not current machine) Yes Mapping to new machine and then giving path is an option. Any other opton.? Anis - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: License question
First of all, I am not mysql person and I would like to share my personal understanding only. If your program is under GNU's GPL (ie. free open source software) you can use MySQL right away. There is no need to buy license. Otherwise, you may ask whether MySQL is an option or not. It means that if your logs and related information can go to other mean such as a text file then you are no need to buy license. However, if your program can't run without MySQL database, I think license will be required. Regards, My company develops commercial project which is close to well know ICQ but has slightly different appliance. Can I use MYSQL for storing list of users, collecting some statistics, logs and other related information or I have to buy license? __ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: problem in connecting to DB
Yes, it is one of the security feature of MySQL that cause problem. Instead
of using IP address, MySQL always perform a reverse DNS lookup and use host
name instead.
One of my past painful experience is I add a user with host for
192.168.0.33. However, no matter how hard I tried, I can't connect to MySQL
from 192.168.0.33. Finally, I add an entry in the reverse DNS that allow
192.168.0.33 to lookup a host name and the problem solved.
Best regards,
one more thing i would like to ask u gurus when i have given my host
with an IP address... why is it giving the message
username@localhost wherein it should give me as
username@IPaddress
Thanks
Ganesh Rajan
- Original Message -
From: Ganesh Rajan [EMAIL PROTECTED]
To: Diana Soares [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Wednesday, February 19, 2003 10:26 AM
Subject: Re: problem in connecting to DB
Thanks for the response but as the document states to RUN mysqladmin
flush-privileges and mysqladmin reload i tried bothways... but in
vain
... i still get the same error message Error 1045: Access Denied for
user:(username@localhost) (user password :YES)
Ganesh Rajan
- Original Message -
From: Diana Soares [EMAIL PROTECTED]
To: Ganesh Rajan [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Tuesday, February 18, 2003 8:59 PM
Subject: Re: problem in connecting to DB
Everytime you use UPDATE, INSERT, DELETE to update user privileges you
must do a FLUSH PRIVILEGES for changes to take effect.
Check the manual:
http://www.mysql.com/doc/en/Privilege_changes.html
On Tue, 2003-02-18 at 11:57, Ganesh Rajan wrote:
hello all,
i would like to put a problem as what iam facing... i created a new
database
new user, but i didn't give the password...
then i logged in to mysql
ie
c:\mysql\bin mysql
then
mysql use mysql
then
mysqlupdate user set password=password('pswd') where user=
'username';
then i got the result as 1row updated.
then i quit from mysql using mysql\q
now when i want to connect
i.e.
c:\mysql\bin mysql -u username -ppswd dbname;
iam getting error stating Error 1405:Access denied for user:
'username@localhost ' (user password :YES)'
IAM WORKING ON COMMANDLINE @ MYSQL SERVER ITSELF
can someone throw light onthis... it will be of grate help
Thanks in advance
Ganesh Rajan
-
Before posting, please check:
http://www.mysql.com/manual.php (the manual)
http://lists.mysql.com/ (the list archive)
To request this thread, e-mail [EMAIL PROTECTED]
To unsubscribe, e-mail
[EMAIL PROTECTED]
Trouble unsubscribing? Try:
http://lists.mysql.com/php/unsubscribe.php
--
Diana Soares
-
Before posting, please check:
http://www.mysql.com/manual.php (the manual)
http://lists.mysql.com/ (the list archive)
To request this thread, e-mail [EMAIL PROTECTED]
To unsubscribe, e-mail
[EMAIL PROTECTED]
Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
-
Before posting, please check:
http://www.mysql.com/manual.php (the manual)
http://lists.mysql.com/ (the list archive)
To request this thread, e-mail [EMAIL PROTECTED]
To unsubscribe, e-mail
[EMAIL PROTECTED]
Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
-
Before posting, please check:
http://www.mysql.com/manual.php (the manual)
http://lists.mysql.com/ (the list archive)
To request this thread, e-mail [EMAIL PROTECTED]
To unsubscribe, e-mail mysql-unsubscribe-
[EMAIL PROTECTED]
Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
--
Yours,
KH Chiu
CA Computer Consultants Ltd.
Tel: 3104 2070 Fax: 3010 0896
Email: [EMAIL PROTECTED]
Website: www.caconsultant.com
-
Before posting, please check:
http://www.mysql.com/manual.php (the manual)
http://lists.mysql.com/ (the list archive)
To request this thread, e-mail [EMAIL PROTECTED]
To unsubscribe, e-mail [EMAIL PROTECTED]
Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
RE: Limits and order bys
For the best I know, it is not possible to do your task with single sql with MySQL. I have done similar task before but I need to put them into temp table and sort or create an index on the temp table. As you can create temp table in memory (server), speed is really not a problem. You may find the 'CREATE TEMPORARY ... TYPE=HEAP SELECT FROM' syntax very useful. If you are in some mean using presistant connection (like using PHP), be careful to DROP the temporary table after use. Regards, I was hoping to do it in sql, since it would be faster. Any other ideas? --- Rob ** Rob Cherry mailto:[EMAIL PROTECTED] +27 21 447 7440 Jam Warehouse RSA Smart Business Innovation http://www.jamwarehouse.com ** -Original Message- From: gerald_clark [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 18, 2003 11:36 PM To: Rob Cc: [EMAIL PROTECTED] Subject: Re: Limits and order bys Sort them yourself after retrieving them. Rob wrote: I have a question regarding the use of LIMIT with ORDER BY. My problem is as follows: I want my users to be able to pageanate through result sets, so I've written some code that will display the results of a query 15 rows at a time in a HTML table. The next set of results can be accessed by pressing the next button and ditto for the previous set. The query is SELECT name FROM documents LIMIT 10, 15 I want to further extend this functionality by allowing the users to click on the column name (in the table header) and then sort the current set of results from by the chosen column. So lets say I had the following mysql SELECT name FROM documents LIMIT 2, 4; +---+ | name | +---+ | Visual Patterns Intellectual Property.doc | | footer.jpg| | getHWSerialNumber.txt | | env.php.txt | +---+ Now, I want to order by name. So I should get +---+ | name | +---+ | env.php.txt | | footer.jpg| | getHWSerialNumber.txt | | Visual Patterns Intellectual Property.doc | +---+ But, when I apply the following query mysql SELECT name FROM documents ORDER BY name ASC LIMIT 2, 4; I get +---+ | name | +---+ | env.php.txt | | footer.jpg| | getHWSerialNumber.txt | | Ideas.doc | +---+ I can only assume that MySql is ordering by name before limiting the result set. Obviously I want the reverse. Any ideas? Thanks --- Rob - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Database Backup Question
Sorry I am in a bit hurry and just post some hints on your question. It is more than one way to do your job. One of the trival way is to use php function 'exec'. This function can execute shell programs. It means that you can execute mysqldump etc. and create dump file. From my experience, you should exp. with exec for a while to get thru. all the tricks like trustee and getting output back. You should also zip or bzip the file using similar technique. File download is trival. If you need further help, you may let you know. Regards, This is actually more a PHP question but since it refers to a MySQL database I thought I would ask here. I may not be looking in the right places but, I can't seem to find a way to do a database backup through PHP (other than BACKUP TABLE, which I don't want to use if possible) What I mean is this: I want to create a page that will allow me to click one button to initiate a backup process. That action will then start a dump of a specified database to a text file that could then be shown on a succeeding (success) page as a link for download (If there's a way to zip prior to downloading, which would be even better). I intend on using this as a manual backup process, so I want it to work like the mysqldump.exe or mysqlhotcopy.exe. (All the tables are MyISAM) The only way I see this working would be to write in PHP a long script that will manually create that dump file itself by using SELECT and so forth. This seems a bit redundant and extravagant a way to go. Any help would be appreciated. -- Loren McDonald [EMAIL PROTECTED] - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Oh GAWD somone HELP :)
You should add a user who allow to connect from 192.168.0.2 before you can connect to MySQL remotely. Further more, make sure that your host can reverse lookup 192.168.0.2. This can be done by add an entry in the /etc/hosts or create a DNS entry. Regards, Just installed mysql nice one i though set it all up read the nessasary docs nice one i thought tried to connect remotly [root@tasha root]# mysqladmin -h 192.168.0.2 version -uroot - ppassword mysqladmin: connect to server at '192.168.0.2' failed error: 'Lost connection to MySQL server during query' oh bugger played around with the configs for a few hours tried everything i could think of read some more docs tried everything i could think of again still the same any ideas? - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail mysql-unsubscribe- [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu CA Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
