What is repair table?

Question

The SQL REPAIR TABLE statement is used to repair a table that is corrupted or suspected of being corrupted. Syntax REPAIR TABLE [IF EXISTS] table_reference FORCEINDEXREBUILD. Use the REPAIR TABLE statement to repair the physical structure of a table that is corrupted or suspected of being corrupted. 26 апр. 2022 г.

What is repair table in MySQL?

MySQL Repair Table allows us to repair or fix the corrupted table. The repair table in MySQL provides support only for selected storage engines, not for all. It is to ensure that we have a few privileges like SELECT and INSERT to use this statement.

What is MySQL check table?

CHECK TABLE checks a table or tables for errors. CHECK TABLE can also check views for problems, such as tables that are referenced in the view definition that no longer exist. To check a table, you must have some privilege for it. CHECK TABLE works for InnoDB , MyISAM , ARCHIVE , and CSV tables.

What optimize table does in MySQL?

OPTIMIZE TABLE reorganizes the physical storage of table data and associated index data, to reduce storage space and improve I/O efficiency when accessing the table. The exact changes made to each table depend on the storage engine used by that table.

Is marked as crashed and last?

“MySQL Table is marked as crashed and last (automatic?) Repair failed”. The error can be caused due to many reasons including zero disk space available on the server, a hard reset of server, forced shutdown of MySQL, or MySQL process crashing due to some reason.

Expert · Answer

MySQL Repair Table allows us to repair or fix the corrupted table. The repair table in MySQL provides support only for selected storage engines, not for all. It is to ensure that we have a few privileges like SELECT and INSERT to use this statement.

Expert · Answer

CHECK TABLE checks a table or tables for errors. CHECK TABLE can also check views for problems, such as tables that are referenced in the view definition that no longer exist. To check a table, you must have some privilege for it. CHECK TABLE works for InnoDB , MyISAM , ARCHIVE , and CSV tables.

Expert · Answer

OPTIMIZE TABLE reorganizes the physical storage of table data and associated index data, to reduce storage space and improve I/O efficiency when accessing the table. The exact changes made to each table depend on the storage engine used by that table.

Expert · Answer

“MySQL Table is marked as crashed and last (automatic?) Repair failed”. The error can be caused due to many reasons including zero disk space available on the server, a hard reset of server, forced shutdown of MySQL, or MySQL process crashing due to some reason.

What is repair table?