MySQL and Null

Just for my own record, dealing with Null type field. Checking with : select * from tablename where field1=”  -> this one not work select * from tablename where field1=’Null’ -> same too is null is the answer select * from tablename where field1 is null Save my day, thanks to St4r

Mysql Trigger Tutorial and Tools

Deal with gammu and mysql make learn more about mysql feature in mysql 5.0 called trigger. Books always good to start with so I choose MySQL Stored Procedure Programming book to start with but others might help to for someone looking for practical solution in cookbook form etc : High Performance MySQL: Optimization, Backups, Replication, …


Postfix and LOCK tables

just found error in /var/log/messages and when I try to backup postfix database. mail# mysqldump -upostfix -p postfix > postfix.sql Enter password: mysqldump: Got error: 1044: Access denied for user ‘postfix’@’localhost’ to database ‘postfix’ when using LOCK TABLES checking user privileges using information_schema mail# mysql -upostfix -p Enter password: Welcome to the MySQL monitor.  Commands …


MySQL date range, case study

Just stumble upon situation where I need to find out if specific date in a date range. I’ve try using lower than with greater than operator and use between in second attempt. Quick mysql shell mode Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. C:\Documents and Settings\alam>cd c:\appserv\mysql\bin   C:\AppServ\mysql\bin>mysql -uroot -p Enter …