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What is a major difference between MyISAM and InnoDB storage engines?
Here are a few of the major differences between InnoDB and MyISAM: InnoDB has row-level locking. MyISAM only has full table-level locking. InnoDB has what is called referential integrity which involves supporting foreign keys (RDBMS) and relationship constraints, MyISAM does not (DMBS).
How can I convert tables from MyISAM to InnoDB?
Follow steps:
- Use MySql commands as follows, for converting to InnoDB (ALTER TABLE t1 ENGINE = InnoDB) or (ALTER TABLE t1 ENGINE = MyISAM) for MyISAM (You should do this for each individual tables, t1 is for the table name.).
- Write a script that loops on all tables and run the alter command.
How do I change MyISAM to InnoDB in phpMyAdmin?
How to convert MyISAM to InnoDB?
- First, we login to phpMyAdmin.
- Then, check the type column and see the storage engines.
- Later, click on the MyISAM table and click the Operations tab and change the storage engine.
What does MyISAM stand for?
Indexed Sequential Access Method
MyISAM stands for Indexed Sequential Access Method. It was the default storage engine for MySQL until December 2009. With the release of MySQL 5.5, MyISAM was replaced with InnoDB. MyISAM is based on an ISAM algorithm that displays information from large data sets fast.
How do I know MyISAM or InnoDB?
Simply check the value of the Engine column in the returned dataset to know which engine the table is using. SELECT ENGINE FROM INFORMATION_SCHEMA. TABLES WHERE TABLE_NAME=’your_table_name’ AND TABLE_SCHEMA=’your_database_name’; — or use TABLE_SCHEMA=DATABASE() if you have a default one.
How do I change my storage engine to InnoDB?
Access phpMyAdmin and select your database. Then click on SQL, place the following query and click on Go: ALTER TABLE my_table ENGINE = InnoDB; If the query is executed properly, the database engine of the table will be changed to InnoDB.
How do I change from InnoDB to MyISAM?
The MySQL database can be dumped into a SQL file using mysqldump followed by replacing “ENGINE=INNODB” with “ENGINE=MyISAM”. Then the database can be dropped (deleted), recreated and the SQL dump that is modified can be restored. Then drop the user_db database and recreate it again.