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How to update MySQL table storage engine
To update MySQL table engine, following the below syntax −
Syntax
alter table yourTableName ENGINE=InnoDB;
Let us first create a table −
mysql> create table DemoTable -> ( -> StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> StudentName varchar(20), -> StudentAge int, -> StudentCountryName varchar(20) -> )ENGINE=MyISAM,AUTO_INCREMENT=101; Query OK, 0 rows affected (0.18 sec)
Let us check the description of table −
mysql> show create table DemoTable;
This will produce the following output −
+---------------+-----------------------------------------------------------------------------------------+ | Table | Create Table | +---------------+-----------------------------------------------------------------------------------------+ | DemoTable | CREATE TABLE `DemoTable` ( `StudentId` int(11) NOT NULL AUTO_INCREMENT, `StudentName` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL, `StudentAge` int(11) DEFAULT NULL, `StudentCountryName` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL, PRIMARY KEY (`StudentId`) ) ENGINE=MyISAM AUTO_INCREMENT=101 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci | +---------------+------------------------------------------------------------------------------------------+ 1 row in set (0.50 sec)
Here is the query to update MySQL table engine −
mysql> alter table DemoTable ENGINE=InnoDB; Query OK, 0 rows affected (1.21 sec) Records: 0 Duplicates: 0 Warnings: 0
Let us check the description of table once again −
mysql> show create table DemoTable;
This will produce the following output −
+---------------+-----------------------------------------------------------------------------------------+ | Table | Create Table | +---------------+-----------------------------------------------------------------------------------------+ | DemoTable | CREATE TABLE `DemoTable` ( `StudentId` int(11) NOT NULL AUTO_INCREMENT, `StudentName` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL, `StudentAge` int(11) DEFAULT NULL, `StudentCountryName` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL, PRIMARY KEY (`StudentId`) ) ENGINE=InnoDB AUTO_INCREMENT=101 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci | +---------------+------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec)
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