Mysql optimize table and repair table command instructions (repair table and optimize table)

Copy codeThe Code is as follows:
Repair table 'table _ name' REPAIR table
Optimize table 'table _ name' OPTIMIZE table

Repair table is used to REPAIR damaged tables.
Optimize table is used to recycle idle database space. When the data rows in the TABLE are deleted, the occupied disk space is not immediately recycled, after the optimize table command is used, the space will be recycled and the data rows on the disk will be rearranged (Note: it is on the disk rather than the database ).

Optimize table does not need to be run most of the time. You only need to perform a data TABLE optimization operation after batch deletion of data rows, or regularly (once a week or once a month), only for those specific tables.