Case Insensitive REPLACE() for MySQL

One request I occasionally see is for a case insensitive version of REPLACE() for MySQL. I wrote this a while back, but here it is now for all of you to play around with. It uses a basic naïve string search algorithm, so can be slow under some circumstances. [code lang=”sql”]DELIMITER $$ DROP FUNCTION IF […]

Replication with InnoDB and MyISAM Transactions

There’s a change of behaviour in MySQL 5.1.31 for Row Based Replication, if you have InnoDB transactions that also write to a MyISAM (or other non-transactional engine) table. It’s a side effect of fixing Bug #40116. Take this simple example: Transaction 1: INSERT INTO myisam_tbl (item, val) VALUES (1, 0); Transaction 1: INSERT INTO innodb_tbl […]