Re: Document / Image (Blob) archival -- Best Practices
Tim, I did this for a large collection of images, ~1million images up around 40 gigs total last time I checked (no longer involved in the project). It worked very well, performance was not horrible compared to file-based storage. I always feared that MyISAM table getting corrupted and having to run a myisamcheck. The backup was a bit tricky too, had to have the data replicated elsewhere because it took over an hour to backup and we couldn't have the table locked up that long on production. There was a good discussion about this on this weblog recently: http://sheeri.com/archives/39 No experience with document mangement system. We talked a few times about working with a digital library for storage but were never compelled to go beyond what we had in MySQL. Mike On Apr 18, 2006, at 9:48 PM, Tim Lucia wrote: Hi all, I am considering moving some archival records which largely consist of blobs (PDF Image files) out of an Oracle DB and onto MySQL. Has anyone done this (not necessarily the Oracle part) who can relate their experience (s)? I can go with MyISAM or archive storage engine, from the looks of it. This is not transactional data, although eventually some reporting may be required (although since the blob data are things like fax archival documents, I'm not sure what can be reported.) Another possible storage model would be to use MySQL as the index but put the blobs (.PDFs) into some document management system. If you've done anything like this, I'd like to hear about it as well. All input appreciated (to the list, please ;-) ) Tim -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Fetch and updation in single step/query
Seems like what you need is an auto-increment key. Is that out of the question? On Apr 18, 2006, at 1:34 AM, abhishek jain wrote: Dear Friends, I run several processes and they need to query the mysql 5.0.8 database simultaneously .I have a config table which have the record id. I need to fetch that and increment that .What I feel that the same record id is fetched by different simultaneosly before i update .Can anyone help me in either: 1)telling me a single query which will fetch and incr. in the same query. so the problem of simultaneously queries are solved. 2)A system by which delaying the other queries are done, I use PHP . Expecting a quick reply. Thanks, Abhishek Jain -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: could a Trigger execute a outside command?
On Jun 27, 2005, at 1:32 PM, Ted Zeng wrote: I don't know if it is possible under Mac OS. But I assume it is, consider it is basically a UNIX. I just want to trigger a shell script, say, a perl script. Could a shell script be called from a C program? It looks like I will need to go through a lot of stuff to do this. Just remember that this shell script will be called for every record involved in the database action. If up do an update on the table that affects 1000 rows, the database will go through the process of calling the UDF and associated system calls for each of the 1000 rows. This will degrade database performance. What it is you are trying to accomplish with the shell script? Perhaps it could be pulled into the UDF, or into some other mechanism. On Jun 24, 2005, at 2:42 PM, [EMAIL PROTECTED] wrote: Isn't this what a User Defined Function would be used for? Your trigger would call the UDF which would do a system(). Or is this not possible under Mac OS? -Lee Gleb Paharenko [EMAIL PROTECTED] I don't know any SQL statements which could launch extern commands, at least in MySQL. So in triggers it is impossible as well. Ted Zeng [EMAIL PROTECTED] wrote: Hi, I am using MySql on Mac OS X. I am wondering if I could execute a command (shell, perl) by a Trigger. I read the manual and it seems this is impossible. ted Mike Kruckenberg [EMAIL PROTECTED] ProMySQL Author http://promysql.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Backup and Maintenance Strategies
I don't know how big your tables are, and if you can withstand any downtime. Because we're using MyISAM tables, we use mysqlhotcopy, which locks the database as it copies the tables to another location. Once that's been done you can rely on your filesystem backup to keep copies of the data files but know that they'll be a point-in-time snapshot. We also use mysqldump, which works for all table types and can do the job if your tables aren't too large. Again, if you dump your tables to another folder/disk, the fs backup is a good way to keep copies of that data. Mike On Jun 25, 2005, at 1:32 AM, James Tu wrote: What have people done in the past regarding backup strategies? Is it adequate enough to rely on filesystem backups for mysql? Basically such that we can restore MySQL to the last filesystem backup. Is there a reason not to do this? I don't have any mission critical data and data that is lost since the last backup is acceptable. -James Mike Kruckenberg [EMAIL PROTECTED] ProMySQL Author http://www.amazon.com/exec/obidos/ASIN/159059505X -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: CHECK constraint
A trigger is a good place to check the value, and change it, bit I
don't believe you can actually generate a MySQL error within the
trigger that will prevent the data from being inserted. Currently
(unless there's been an update to triggers that's not yet in the
docs), you can only change the value before it gets inserted.
If you are looking to enforce the values going into your JobType
column, you might be better off creating a JobType table, with a
foreign key restraint between the tblJob.JobType and JobType.Name,
and make sure that the only entries in the JobType.Name column are
those you want to appear in the tblJob.JobType column.
On Jun 25, 2005, at 10:28 AM, Chris Andrew wrote:
Dear List,
My system is RedHat EL3 and MySQL 5.0.7-beta.
I wanted to implement a check constraint (below), but after some
testing
and googling, it seems I can't do this with MySQL. I've read
suggestions
that check(s) should be done using triggers. Is a trigger a preferred
method of achieving the following:
CREATE TABLE tblJob (
JobId SMALLINT UNSIGNED NOT NULL,
CustomerIdSMALLINT UNSIGNED NOT NULL,
JobType VARCHAR(20) NOT NULL DEFAULT 'DesignInstall',
Description VARCHAR(100) NOT NULL,
QuotationDate DATE NOT NULL,
OrderDate DATE,
CHECK (JobType IN ('DesignOnly', 'DesignInstall', 'InstallOnly')),
PRIMARY KEY (JobId, CustomerId)
) TYPE=InnoDB;
Regards,
Chris
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Re: CHECK constraint
Hi,
Use enum with a default type and let mysql do the check for you.
The problem with an enum is that if you insert a value that's not in
the enum, MySQL doesn't stop the insert, it leaves the column empty.
This doesn't enforce data integrity like I think Chris wanted.
mysql desc enum_test;
+---+---+--+-+-+---+
| Field | Type | Null | Key | Default | Extra |
+---+---+--+-+-+---+
| id| int(11) | YES | | NULL| |
| name | enum('test1','test2') | YES | | test2 | |
+---+---+--+-+-+---+
2 rows in set (0.25 sec)
mysql INSERT INTO enum_test VALUES (1,'test3');
Query OK, 1 row affected, 1 warning (0.29 sec)
mysql SELECT * from enum_test;
+--+--+
| id | name |
+--+--+
|1 | |
+--+--+
1 row in set (0.00 sec)
Mike Kruckenberg
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Re: Help with pathnames on a LOAD DATA INFILE
First, remember when MySQL interacts with the filesystem it does so with the privileges of the mysql user (or whatever user is running the database). You'll have problems if that user doesn't have permissions in that dir. I'm not sure what OS GoDaddy runs, but if it's a flavor of Linux the data files are probably in: /var/lib/mysql or they might be in: /usr/local/mysql/data Brian Dunning wrote: I've got a GoDaddy virtual dedicated server and I'm trying to run a LOAD DATA INFILE, but I keep getting Can't get stat of '/home/httpd/ vhosts/04planet.info/httpdocs/test.txt' (Errcode: 13) As you can see from that error message, I've uploaded my data file to the httpdocs directory and trying to run: LOAD DATA INFILE '/home/httpd/vhosts/04planet.info/httpdocs/ test.txt' etc I've Googled and read some people found success by uploading their data file to a mysql directory instead, but I can't find such a directory for the life of me by browsing around through this server. Can anyone point me in a good direction? Thanks. :) -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: remote connection problem
One other thing to check, make sure --skip-networking isn't specified in your configuration. mysql show variables like 'skip_networking'; +-+---+ | Variable_name | Value | +-+---+ | skip_networking | OFF | +-+---+ 1 row in set (0.00 sec) If the value is ON, you won't be allowed to make connections to the server via TCP/IP. On Tue, 2005-03-22 at 15:43 -0600, gerardo Villanueva wrote: I have mysql version 4.0.15-nt in a server NT, I can connecting with mysql localy, but when i try remote connection the error is: Error Number 2003 Can't connect to MySQL server on 'IP' (10060) . I use mysql odbc 3.51 Is necesary the file my.cnf in c:\my.cnf Regards Gerardo Campos _ Do You Yahoo!? Informacin de Estados Unidos y Amrica Latina, en Yahoo! Noticias. Vistanos en http://noticias.espanol.yahoo.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: remote connection problem
Not necessary to change my.cnf, unless --skip-networking was specified. Also assuming that you are using port 3306. mysql show variables like 'port'; +---+---+ | Variable_name | Value | +---+---+ | port | 3306 | +---+---+ 1 row in set (0.00 sec) Can you verify that network traffic is getting from your remote client to the MySQL server? When you attempt to connect, do you see network packets coming to port 3306 on the MySQL server machine? On Tue, 2005-03-22 at 16:35 -0600, gerardo Villanueva wrote: I execute your query and the skip_networking is OFF. the file my.cnf, have to ubicated in C:\my.cnf or is not necesary?? Regards Gerardo Campos _ Do You Yahoo!? Informacin de Estados Unidos y Amrica Latina, en Yahoo! Noticias. Vistanos en http://noticias.espanol.yahoo.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
create view - what does the algorithm clause do?
I'm using 5.0.2 and playing with views. The documentation indicates:
CREATE [ALGORITHM = {UNDEFINED | MERGE | TEMPTABLE}] VIEW . . .
I can't figure out what that alrorithm setting changes (it's not
discussed in the MySQL documentation). I don't see it in the SQL:2003
docs I have. It looks like temptable is used in SQLite to indicate that
a view should be temporary for this session, but that doesn't seem to be
true for MySQL views created with that.
Is it possible that these are currently ignored? The documentation
usually indicates such.
Anyone have ideas?
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Re: Dumping Select statement output onto a text file
There are several ways to get output to a text file, from the Unix shell you can: mysql -e select * from table database output.txt or if you're looking for more of a log of what happened in the MySQL client, from the MySQL shell: tee output.txt select * from table; Mulley, Nikhil wrote: Hi List, How do I dump the data from console to the text file from the output generated by SELECT statement ? Thanks, Nikhil. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Server hanging
Back in 3.23.x we used to see MySQL hang on a corrupt table (typically caused by an improper shutdown). A kill -9 was needed to stop the process, upon restart we'd run a mysqlcheck (MyISAM tables) and repair the table. We didn't see anything obvious in the logs except the last query, which was attempting to use the corrupt table. Ronan Lucio wrote: Hello, I had a problem with our MySQL server-4.0.18 where it suddenly stoped working. Even a KILL command didn´t killed the mysqld process. I looked for any error message in the file /usr/local/mysql/hostname.err, but I couldn´t see any error message about such time. Does anyone knows what could make MySQL hangs? And where can I find error messages that could tell me what happend? Thanks, Ronan -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: UPDATE string segment?
You can use the replace string function: update table set file_path=replace(file_path,'aFolder','aFolder/aChildFolder'); In each update aFolder will be replaced by the new path. John Mistler wrote: I have a column that holds hard disk file location info such as: /Volumes/External HD/aFolder/aFile.pdf /Volumes/External HD/aFolder/anotherFile.pdf etc. . . (many files located in the same folder) Can anyone suggest a single statement (or multiple) that would update every file location located in this same folder to another location, say: /Volumes/External HD/aFolder/aChildFolder/aFile.pdf /Volumes/External HD/aFolder/aChildFolder/anotherFile.pdf etc . . . ? Thanks, John -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: all upper case records.. Keeping first char upper and rest lower?
It's ulgy, and I'm not sure how efficient it is, but this will do the trick: select concat(left(first,1),substring(lower(first) from 2)) as first; Aaron Wolski wrote: Hey guys, I have a column in a table called 'first'. Currently all records are upper case. Is it possible for me to do a select statement that makes all chars after the first char lower case? Example: Current: AARON After: Aaron I think this is possible.. just don't know how to execute the functions together to make it happen. Thanks! Aaron -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: update synopsis error
What version of MySQL are you using? Subqueries aren't available until 4.1.x. saiph wrote: hi, mysql update table1 set c = (select c2 from table2 where c2 = 'value') where id = 123; give me an ERROR 1064. i.e. create table t1 ( id int primary key, name varchar(20) ); create table t2 ( id int primary key, name varchar(20) ); insert into t1 values(1, 'not right') insert into t2 values(1, 'right') update t1 set name = (select name from t2 where id = 1) where id = 1; how i can update right? -- http://mike.kruckenberg.com | [EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: A Request from a Software Programmer
There are a number of steps after installation that need to happen before you will be able to connect: http://dev.mysql.com/doc/mysql/en/Unix_post-installation.html naresh bhalala wrote: Respected Sir/Madam, I have download the MySQL4.0 from www.dev.mysql.com and file is :mysql-standard4.0.20-pc-linux-i686.tar.gz. I have installed it as bellow: #gunzip -9c standard4.0.20-pc-linux-i686.tar.gz | tar -xvf - and all files r extraced in folder:standard4.0.20-pc-linux-i686 Now i've run /standard4.0.20-pc-linux-i686.tar.gz/bin/mysql BUT ITS GIVING ERROR: ERROR 2002 (HY000): Can't connect to local server through socket '/tmp/mysql.socket' (2) pl reply to this mail and solve my prob. thanking you in advanceNaresh -- http://mike.kruckenberg.com | [EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Problems with Order By (phpMyAdmin)
David Blomstrom wrote: I'm working on an add/edit form, illustrated by the screehnshot at http://www.geoworld.org/addedit2.gif I decided to arrange the rows by ID, rather than alphabetically. So I opened the table in phpMyAdmin, clicked Operations, then changed Order by from a field named SCode to ID. When I clicked through, it defaulted to SCode. To get the order right on your web page you may need to add order by ID to the query in your script. The alter table order by ID statement executed from phpMyAdmin reorders the table's current rows, but after inserts or deletes the table will no longer be in that order. http://dev.mysql.com/doc/mysql/en/ALTER_TABLE.html Mike -- http://mike.kruckenberg.com | [EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Error 1054
Maybe a long shot, but creating this table should have required using backticks around `Column` because it's a reserved word. Made me wonder if the ID field in the create statement was in backticks as well and maybe has an extra character. What does show create table Spot show? Hi, I have a table Spot in the database as follows desc Spot - ; +---+-+--+-+-+---+ | Field | Type| Null | Key | Default | Extra | +---+-+--+-+-+---+ | Name | varchar(32) | YES | | NULL| | | ID| int(11) | | PRI | 0 | | | Row | varchar(32) | YES | | NULL| | | Column| varchar(32) | YES | | NULL| | | Probe_ID | int(11) | | | 0 | | | Array_Type_ID | int(11) | | | 0 | | +---+-+--+-+-+---+ When I try to access the field ID shown above though, it gives me error: mysql select ID from Spot; ERROR 1054: Unknown column 'ID' in 'field list' This is kind of weird. I will really appreciate any ideas Thank you, Kaustubh __ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/ -- http://mike.kruckenberg.com | [EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Problem while insert binary
giovanni cordeschi wrote:
Using PHP i'm not able to insert a binary variable into a field of type
mediumblob of mysql.
The command I've used is:
$cfg_Query = Insert into (operazioni, datacreazione) Values
('.$contents.', Now());
$result = mysql_query($cfg_Query, $conn)
It doesn't appear there is a table name in your insert.
If that's not it you might try printing mysql_error() to pinpoint what's
happening on the error.
Mike
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Re: DB hanging
Brandon Metcalf wrote: We are running 3.23.58 on Solaris 8 and seeing the following problem. Periodically, mysqld gets into a state where we can't query just one table in all of our DBs--queries just hang. Restarting mysqld always fixes the problem, but a SIGKILL is required to stop it. Have you tried show processlist while this is happening? We've had this happen and most often it's someone or some script running a query with a missing join and killing the query fixes the problem. Could this be something is corrupt in this particular table? Would dumping this DB and reloading it help? Does check table indicate any problems? http://dev.mysql.com/doc/mysql/en/CHECK_TABLE.html Mike -- http://mike.kruckenberg.com | michael at kruckenberg.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Posting Articles in Databases
David, MySQL is up to the task. Oodles of people doing this. We do something similar for course syllabi, thousands of documents (currently 113,676), both in XML and HTML, which can be as large as 100 pages when printed. I'm sure there are examples out there with more impressive statistics. Mike David Blomstrom wrote: I finally got my PHP add/edit form to work. While working on it, it occurred to me that I could use it to post and modify more than bits of data in tables. I could use it to make pages that people with no web design skills can add articles to. Most of my post focuses on PHP; my main question regarding MySQL is this: Is it a good practice to use MySQL databases for entire articles? By article, I mean anywhere from two to over 100 paragraphs, along with HTML coding and perhaps some images. I know I haven't invented the wheel; I'm sure people are already doing this or using a similar method. I'm just new to this content management stuff, so I'm just learning the ropes. Anyway, this is my plan: Suppose I put 50 pages focusing on the 50 states online. But each page's body section is empty, except for a link to a single cell in a MySQL table. The cell corresponds with a field named Articles, and an echo statement in the page's head section further specifies a state (or row), such as Alaska. Thus, a client could write an article about Alaska, insert a couple images, then copy the HTML. Next, he would access my add/edit page, click the Alaska row and find the Articles cell/field. Then he would paste the article into the cell and submit it. He effectively created a web page focusing on Alaska without REALLY creating or uploading a page. Does this sound like a good idea, and is MySQL up to the task? Thanks. __ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/ -- http://mike.kruckenberg.com | michael at kruckenberg.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Adding to a record
Seems like you could do it either way: PHP ? $new_num = $mysql_num + $user_num; mysql_query(update table set number = $new_num where . . .) ? or MySQL ? mysql_query(update table set number = number + $user_num where...) ? Depends if you want php or mysql to perform the calculation. Daniel Venturini wrote: Hello. Quick easy question I think? I display a INT value to a page (php) by querying mysql. I want to be able for someone to put a new number and add to that record. How would I go about doing this. Would this be a mysql command or a php thing? Thanks in advance. -- http://mike.kruckenberg.com | [EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Sorting Problem
H Bartel wrote: I have the following tables which look like this: table tartist ++--+--+---+---+ | id | name | info | image | genre | ++--+--+---+---+ table programm ++--+---++ | id | date | stage | artist | ++--+---++ I want to be able to sort by stage and genre. Stage is no problem, since it's kept in the programm table. Sorting by genre I believe could work with a JOIN, but I have tried and didn't quite understand what and where to join things here. The idea is: SELECT id, date, stage, artist FROM programm WHERE tartist.id=artist AND tartist.genre=$genre; In words: Select every row from programm where artist matches the id in tartist and where genre in tartist is of value $genre. It seems the SQL isn't quite right here. Try something like: select p.id, p.date, p.stage, p.artist from programm p, tartist t where p.artist = t.id and t.genre=$genre; Mike -- Mike Kruckenberg [EMAIL PROTECTED] http://mike.kruckenberg.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: copying longblob value to another table...
Abubakr wrote: I am trying to copy a file stored in longblob column of a table to a longblod column of another table, can any one tell me what kind of insert statement should i use for that purpose. You should be able to insert into your upload table with a select from your testing table. This doc explains the syntax: http://dev.mysql.com/doc/mysql/en/INSERT_SELECT.html 2ndly can any one tell me any built in function in mysql to download a file from longblob column to your local disk, i m aware of 'load_file' function to save a file from local disk to mysql DB but unable to find a function to download a file. You can add 'into dumpfile' to the select to get blob data into a file: select column into dumpfile 'filename' from . . . The SELECT doc gives more details: http://dev.mysql.com/doc/mysql/en/SELECT.html -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: BLOB's - General Guidance
In a lot of cases storing images on the filesystem makes the most sense. We store images in a database because we have multiple webservers that need to both read and write images. Keeping them in MySQL makes this easy. NFS isn't an option for us. Having images in the database also makes scaling pretty simple in that we can add replicated slave machines for reading images. David Blomstrom wrote: --- Greg Willits [EMAIL PROTECTED] wrote: On May 19, 2004, at 1:19 PM, David Blomstrom wrote: All conventional wisdom I've ever come across for this type of application is that there's no advantage to keeping the image in the db itself. Just keep them as files on the server, store a filename /or location in the db if necessary, and use your middleware to display the images. Its faster, easier to maintain, and easier to backup. IMO, storing images in the db just bloats the file and complicates all the backup issues. That's the advice I wanted to hear; one less thing for me to learn. :) Thanks. __ Do you Yahoo!? SBC Yahoo! - Internet access at a great low price. http://promo.yahoo.com/sbc/ -- Senior Programmer, Tufts University Sciences Knowledgebase [EMAIL PROTECTED] 617.636.0959 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Installation of mysql-3.23.58 on Redhat 9
There's a quick install guide on the MySQL site, which has most of what you've listed: http://dev.mysql.com/doc/mysql/en/Quick_install.html The INSTALL-SOURCE doc which comes in the tarball covers the process in great detail. There may be others, those are two I've used. Kamal Ahmed wrote: All, I am looking for a stepwise installation of mysql-3.23.58 on Redhat 9. and have a hard time finding it on the MySql web site. Could someone e-mail me the steps, please. There should also be a section on installing databases, in order to make sure that MySql is running and is operational Thanks, P.S as a sample, i am providing the following, which is good, but still not complete. Get the sourceballs MySQL current version: 3.23.58 URL: http://www.mysql.com/downloads/ http://www.mysql.com/downloads/ ... Change into the MySQL source directory as follows; #cd mysql-4.0.16 Follow this command by typing; #./configure -prefix=/usr/local/mysql -localstatedir=/usr/local/mysql/data -disable-maintainer-mode -with-mysqld-user=mysql -enable-large-files-without-debug #make #make install MySQL is installed, #/usr/sbin/groupadd mysql #/usr/sbin/useradd -g mysql mysql #./scripts/mysql_install_db Then we make a couple minor ownership changes; # chown -R root:mysql /usr/local/mysql # chown -R mysql:mysql /usr/local/mysql/data we use vi to add a line the ld.so.conf file as follows; #vi /etc/ld.so.conf And we add the following line; /usr/local/mysql/lib/mysql #/usr/local/mysql/bin/mysqld_safe -user=mysql #/usr/local/mysql/bin/mysqladmin -u root password new_password Kamal Ahmed Sr. Test Engineer e-Security, Inc. Enterprise Security Management 1921 Gallows Road, Suite 700 Vienna, VA 22182 phone: 703-852-8055 fax: 703-852-8010 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: ORDER BY Question
Dirk Bremer (NISC) wrote: The following query produces the following results: select job_coop as 'Job/Coop', count(*) as Count from queue group by job_coop; +--+---+ | Job/Coop | Count | +--+---+ | B03013 |19 | | B05044 | 9 | | B07037 | 6 | | B15037 | 4 | | B16032 | 6 | | B17026 | 6 | | B17056 |18 | | B18032 | 5 | | B20009 |31 | | B21012 | 1 | | B24026 | 8 | | B25001 |42 | | B27043 |10 | | B27047 | 8 | | B29064 | 6 | | B31004 |61 | | B36035 |60 | | B36529 |54 | | B38023 |38 | | B38034 | 7 | | B40020 |30 | | D18032 |31 | | D27047 | 2 | | D31004 |59 | +--+---+ Is there a way to use the ORDER BY clause to order the results by the numeric value of the count(*), i.e. so that the results would be sorted by the result of the count(*)? select job_coop as 'Job/Coop', count(*) as Count from queue group by job_coop order by Count; -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: How to export data with no headers?
Using --skip-column-names with the client or mysqldump suppresses the column names. Cao, Wenhong wrote: Hi All, I am trying to export the records from the tables in the mysql database into a file. The problem I am having now is that I don't know how to export the records into a file without the header information, which is the name of columns. Can someone help? Thanks, Wenhong -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Importing at command line from text file
Robert Ameeti wrote: I'm a newbie trying to follow a tutorial. The tutorial says to type: mysql employees employee.dat The employee.dat file doesn't have to be in any specific location, as long as you can read it. To run the command above, cd into the directory with the employee.dat file (maybe your home directory?) and issue the statement. You can also use an absolute path, ie: mysql employees /home/userid/employee.dat -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Directory Permissions on files
Yes, the file permissions do affect whether the table can be updated. The files need to be writable (in the filesystem sense) by the user running mysqld. By default MySQL creates directories umask 0700 and files 0660 unless the UMASK env variable is set differently when mysqld is started. If you chown to the user running mysql and chmod the files to an appropriate umask you should see this issue go away. Robert Reed wrote: Greetings, I've recently inherited a FreeBSD server running MySQL 3.23.54. It's good and stable. I have a second server that runs as a slave to the first. Everything goes smoothly until I make changes to a certain table on my master. This will kill the slave with the error that this table is read-only. These are all MyISAM tables. I noticed recently that the various directories have different permissions and access levels on them and wondered what the correct levels should be. And...does this even have an effect on whether the table can be written to? Thanks in Advance = Robert Reed 512-869-0063 home 512-818-2460 cell __ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Export query to text file
Add the -t option to ensure you're getting the table output stuck into
your file.
mysql -t -uuser -N -eselect date_format('2004-02-29','%X') sample2.txt
Yingyos wrote:
Hi Victor Pendleton ,
I type this command line.
mysql -uuser -N -eselect date_format('2004-02-29','%X') sample2.txt
When i open in text editor,it show that '2004' only.
But i want format display on text file.
mysql select date_format('2004-02-29','%X');
++
| date_format('2004-02-29','%X') |
++
| 2004 |
++
1 row in set (0.00 sec)
How 's to do?
Thank you for reply again,
Yingyos Santipasert
Victor Pendleton wrote:
mysql -uuser -N -eselect date_format('2004-02-29','%X') sample2.txt
-Original Message-
From: Yingyos
To: Victor Pendleton
Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: 5/4/04 11:04 PM
Subject: Re: Export query to text file
Victor Pendleton wrote:
The `INTO OUTFILE` clause is expecting a table reference. An
alternatvie is
mysql -uuser -N -eselect now() sample2.txt
-Original Message-
From: Yingyos
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: 5/4/04 2:20 AM
Subject: Export query to text file
Hi,
I have MySQL 4.0.17 on Windows XP.
I use SELECT ... INTO OUTFILE print out query to text file.
If i write this command.
mysqlSELECT * from tbl1 INTO OUTFILE C:\\Query\\sample1.txt;
MySQL reponse OK.But i change command.
mysqlSELECT now() INTO OUTFILE C:\\Query\\sample2.txt;
MySQL response by exit from console.
How's to use SELECT ... INTO OUTFILE with datetime or another function.
Thank for the reply,
Yingyos Santiprasert
Hi Victor Pendleton ,
I want format on text file .
mysql select date_format('2004-02-29','%X');
++
| date_format('2004-02-29','%X') |
++
| 2004 |
++
1 row in set (0.00 sec)
How 's to do?
Thank you for reply again,
Yingyos Santipasert
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Re: Installing MySQL
Yes. We do something like this to build packages from a local install.
./configure --prefix=/usr/local/mysql-4.018
make
make test
make DESTDIR=${HOME}/build/mysql/pkg install
Adaikalavan Ramasamy wrote:
Dear all,
Is it possible to install mysql locally on Sun Solaris 8 as I do not have
root permission ?
If so, what is the expected total size on disk and recommended steps
(./configure, make, make --prefix=/my/home/ install : is this sufficient)
?
Any hints or pointers are much appreciated. Thank you very much.
Regards, Adaikalavan Ramasamy
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