The RoarinPenguin Techiezone » SQL

Assigning privileges to a user on MySQL DB

RoarinPenguin — Tue, 03 Feb 2009 18:09:43 +0000

Quick and dirty commands from commandline:

mysql -u -p
mysql> CREATE DATABASE wordpress;
mysql> GRANT ALL PRIVILEGES ON wordpress.* TO ‘wpuser’@'localhost’ IDENTIFIED BY ‘dbpassword’;
mysql> SET PASSWORD FOR ‘wpuser’@'localhost’ = OLD_PASSWORD(‘dbpassword’);
mysql> FLUSH PRIVILEGES;
mysql> quit;

Replace characters in MySQL

RoarinPenguin — Wed, 10 Dec 2008 16:44:08 +0000

It happens sometimes that due to database migration, you see spurious characters in MySQL tables and you would like to intervene massively (thick for instance to forums) and replace them with proper characters.

Luckily this is easily doable if you manage to have connection to DB with command line interface or web based system allowing you to issue SQL statements.

Command to use is:

update TABLE_NAME set FIELD_NAME = replace(FIELD_NAME, ‘find this string’, ‘replace found string with this string’);

Cleanup SPAM users in PHPBB2

RoarinPenguin — Fri, 05 Dec 2008 14:51:09 +0000

Once you have access to DB, the SQL string is:

DELETE FROM phpbb_users WHERE user_active=0 AND user_id>0

This will cleanup all the users marked as non active, thus most likely spam.