Re: problem with count (*) max (*) min (*)
On Fri, Sep 07, 2001 at 09:28:28AM +0200, Antonio Ortega Sancho wrote: I'm trying to do select count (*) from table. but it doesn't work ERROR 1064: You have an error in your SQL syntax near '(*) from pendientes' at line 1 Same happens with max (column) and min (column). Do I have to install anything else or is something wrong. I'm using redhat 7.0 with the mysql that comes with this distribution Try count(*), max(column) and min(column). It probably doesn't accept the space you put in between there. Greetz, Peter -- Monopolyhttp://www.dataloss.nl/monopoly.html - 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: C API mysql client
On Mon, Sep 03, 2001 at 06:18:34PM +, ahmed wrote: please can you give me a cooorect programme source using C APIs mysql to acces mysql database http://www.dataloss.nl/software/dteq/ is such a thing. /plug Greetz, Peter -- Monopolyhttp://www.dataloss.nl/monopoly.html - 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
[mysql@lists.mysql.com: Re: Re: Replication: Push by Master or Pop by Slaves ?]
On Thu, Aug 30, 2001 at 12:44:46PM +0200, Claudio Cicali wrote: [snip] Here, seems that are the slaves that pop data from master. So where is the truth ? Is the master that pushes or the slaves the pops ? Or it is a combination of the two ? In normal operation, the master pushes to the slave. When a slave is turned off temporarily and is turned back on, it pops all changes that happened while it was down. After that, the master starts pushing again. Magic 5 letter word: MySQL. Tsk. Greetz, Peter -- Monopolyhttp://www.dataloss.nl/monopoly.html - 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: check if an index exists?
On Fri, Aug 17, 2001 at 09:32:05AM -0700, Christopher Teli wrote: How can I check if an index exists on a table??? Is there some where I can query the admin tables? 'DESCRIBE tablename' or 'SHOW COLUMNS FROM tablename'. Figure out where it says 'index' for yourself :) (since I don't know exactly :) Greetz, Peter -- Against Free Sex! http://www.dataloss.nl/Megahard_en.html - 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: WANTED: Utility to reverse engineer existing database
On Mon, Aug 06, 2001 at 04:57:41PM -0400, Kevin wrote: I need a utility that will probe my existing mysql database, analyze the 90+ tables and spit out the data definition language (create table, create index, etc.) needed to recreate the database. Does such a utility exist? Tried mysqldump? :) Greetz, Peter -- Against Free Sex! http://www.dataloss.nl/Megahard_en.html - 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: Placing directory structure under GNU GPL
On Tue, Jul 31, 2001 at 06:48:07PM +0400, System Administrator wrote: I wonder whether the default directory structure of all future mysql releases could also be GPL'led. That would prevent others from placing the releases on directories of their own choice. The GPL does not impose any restrictions, as long as people keep the source open. Keeping the source of a directory structure open is not that complicated. Therefore, it will not help. Greetz, Peter -- Against Free Sex! http://www.dataloss.nl/Megahard_en.html - 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 and credit cards
On Wed, Jul 25, 2001 at 07:12:17PM +0200, Alexander Skwar wrote: [snip] 'encryption'? Hmm, how about: none? If you don't need to reconstruct the cc#, md5 will be good. Indeed. That is however rarely the case with credit card numbers. However, if you need to reconstruct it, nothing is safe. And that's quite simple: a) You need to get access to the MySQL server. Impossible to do from the outside if '--skip-networking' is used. b) So, only possible from the localhost. This means, there must have been a break in to the MySQL server. Once he's on the server, he can do anything he likes. He can also read the source code of your PHP/PERL pages. There the password will be stored, somewhere. Once the password has been found (which is nothing but a matter of time), your encryption is broken. That is only true for a parallel cipher. A non-parallel cipher (like PGP) allows you to store just the public key on the server, and have the private key stored somewhere else save, on a way more secured box that actually handles the transactions. Greetz, Peter -- Against Free Sex! http://www.dataloss.nl/Megahard_en.html - 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: Unknown column in 'where clause' error
On Mon, Jun 18, 2001 at 02:44:00PM -0400, Shrout, Ryan wrote: Here is the full error I am getting when running the query included: Failed Query: SELECT * FROM customers WHERE Customer_No = CMET3558539239 1054 : Unknown column 'CMET3558539239' in 'where clause' Here's the problem, I know that Customer_No exists. I can see it in the database. This code works fine when using a Customer_No such as 15 or 153, something numeric. The field itself is defined as a CHAR (50). Any ideas what is causing this? It happens with every Customer_No in this format and gives the same error. Try: SELECT * FROM customers WHERE Customer_No = CMET3558539239; Greetz, Peter -- Against Free Sex! http://www.dataloss.nl/Megahard_en.html - 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: one way encryption for a 16 digits string
On Wed, Jun 13, 2001 at 02:14:48PM -0700, samuel wrote: Hi, I need a one way encryption for a 16 digits string. let's call $string the clear string, and e($string) the encypted string. I need e($string) to give always the same result for any $string, and I need e($string1) != e ($string2) for all ($string1,$string2), having $string1!= string2. Does the PASSWORD() built-in function of mysql fits to these requirements? Yes. If not, do you know about any other encryption method that would fits to that? encrypt() with a fixed salt. Greetz, Peter -- Against Free Sex! http://www.dataloss.nl/Megahard_en.html - 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 order by rand()
On Wed, Jun 13, 2001 at 03:25:55PM -0600, Matt Heaton wrote: I can't seem to find a specificatoin on order by rand() and have a question. Lets say a table has 10,000 rows in it, and I want to get one row that matches so I do a select * from table where number=1 order by rand() limit 1; What if 100 rows match? Does it first get all 100 rows and then randomly choose one? Ofcourse. Or does it find the first one and stop? If it finds 100 rows and then chooses one this is VERY inefficient. If it finds one and then stops, what determines which row it starts searching on? If it stops at the first one, it can't very well return a random one from the set. It therefore has to find those 100 entries first. If anyone knows FOR SURE how this works please let me know... I need to be able to grab a single row FAST even if a bunch of rows match. Let me know if you have any ideas. Let's just say the query is executed from left to right quite nicely. With indexing on 'number' this should be quite fast, still. Greetz, Peter -- Against Free Sex! http://www.dataloss.nl/Megahard_en.html - 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: I'm after an mysql_info() example
On Fri, Jun 01, 2001 at 09:26:08PM +1000, Howard Picken wrote: After reading the manual and doing vaious searchs around the net, I'm damned if I can work out the syntax for mysql_info(). Could anyone give me an example please? In what programming language? Greetz, Peter. - 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 (Recursion and Factorials)
On Mon, May 14, 2001 at 09:32:05AM -0400, lkeeton wrote: [snip] how does it take place. For instance in this example I pass 5 it then gets to the line below and evaluates value = 5 * factorial(5-1)- right there that tells me to call the function again and pass it 4 then when I get to the line right below me $value = 4 * factorial(4-1). I don't see where the actual calculation takes place 5 * 4 * 3 * 2 = 120. Everytime a number gets passed I feel that somehow what I have done before is gone. Can somebody walk me through this very carefully so I can see what is really going on. This is far from a MySQL question. Try a perl forum, or any algorithm's manual. You need to understand the basics of recursion before you can understand that bit of code. Greetz, Peter. - 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: telnet MySQL
On Mon, May 14, 2001 at 07:26:44AM -0700, Shtykh Roman wrote: When I try to telnet MySQL which uses port 3030 as below: telnet grdmss57 3030 I get : Trying 163.143.156.38... Connected to grdmss57.u-aizu.ac.jp. Escape character is '^]'. ( 3.23.38jN(xIDWiConnection closed by foreign host. What is the possible reason? Is it normal? This is normal. Don't telnet to your mysqld :) Greetz, Peter. - 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 commands from Linux shell
On Fri, Apr 20, 2001 at 12:03:22PM -0300, Fabio Galarraga wrote: Hi to all: I have a linux script and I need it can execute some mysql commands. Is it possible? If possible, how? http://www.dataloss.nl/dteq/ (you probably want to disable DEBUGging in the Makefile). Greetz, Peter. - 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
