Creating table symlinks in MySQL is very easy and it is probably one of the features a lot of MySQL users overlook or never think about. You may ask, why would I want to use symlinks? Some of the reasons you would want symlinks is if you are running low on disk space on [...]

Welcome to Tip #1 in MySQL Replication Series. In this tip we will go over what to do when you only want to replicate certain data to slave(s). Most general way to tell what is replicated to which slave is to include following configuration directive in my.cnf file depending on your environment and [...]

Setting up replication is not hard and can be done by following simple directions. You can learn setting up two type of replication MySQL offers here: master-master replication and master-slave replication. Once you have replication set up, you can start playing with it without doing any more changes to the configuration. But let us [...]

Here is a sample table you can create to test following problem/solution on:
CREATE TABLE `t1` (
`a` char(1) default NULL,
`b` smallint(6) default NULL
);
insert into t1 values (’y',’1′);
I have a table t1 which has column a and b, I want column a to be updated to ‘n’ when column b = 0. Here is the first version [...]

Setting up master-master replication in MySQL is very similar to how we set up master/slave replication. You can read up about how to setup master/slave replication in my previous post: How to set up master/slave replication in MySQL. There is obviously pros and cons about using master/master replication. But this is not [...]