Using phpmyadmin I have several tables with the same prefix. I know I can change the storage engine one table by one table, but since some tables are quite heavy to process loading takes forever and sometimes crashes.
Is there a way to select several tables without using the full table name, and then change the storage engine from MyISAM to innoDB for the selected tables ?
phpmyadmin has a window for executing commands. (Better yet, use mysql commandline tool.)
Step 1: Generate the ALTERs
:
SELECT CONCAT('ALTER TABLE ', TABLE_NAME, ' ENGINE=InnoDB;')
FROM information_schema.TABLES
WHERE table_schema='test' AND ENGINE='MyISAM' AND TABLE_NAME LIKE 'rj%';
+-------------------------------------------------------+
| CONCAT('ALTER TABLE ', TABLE_NAME, ' ENGINE=InnoDB;') |
+-------------------------------------------------------+
| ALTER TABLE rj_article ENGINE=InnoDB; |
| ALTER TABLE rj_blobs ENGINE=InnoDB; |
| ALTER TABLE rj_bodies ENGINE=InnoDB; |
| ALTER TABLE rj_combos ENGINE=InnoDB; |
| ALTER TABLE rj_contents ENGINE=InnoDB; |
| ALTER TABLE rj_current ENGINE=InnoDB; |
...
Step 2:
Execute those by copying them. Note: Since phpmyadmin has some kind of time limit, either raise that limit, or switch to mysql
commandline tool.
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