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 the partition where your data generally is and/or you want to move one (or more) table(s) on to a different disk/partition for performance reasons.

One of the things worth mentioning is that MySQL documentation states: “Symlinks are fully supported only for MyISAM tables. For files used by tables for other storage engines, you may get strange problems if you try to use symbolic links.” Keeping that in mind, if you have a innodb table and would like to create symlinks for, you should change the engine type to myisam before symlinking. Although, I have heard and personally used symlinks for innodb databases with no side affects.

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