MySQL - 将表格引擎从 innoDB 更改为 MyISAM?
让我们先创建一个表 -
mysql> create table DemoTable1982 ( StudentId int , StudentName varchar(20), StudentAge int ); Query OK, 0 rows affected (0.00 sec)
让我们检查一下表引擎类型 -
mysql> show create table DemoTable1982;
这会产生以下输出 -
+---------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | Table | Create Table | +---------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | DemoTable1982 | CREATE TABLE `demotable1982` (`StudentId` int(11) DEFAULT NULL, `StudentName` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL, `StudentAge` int(11) DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci | +---------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec)
以下是可以将表引擎从 innoDB 更改为 MyISAM 的查询 -
mysql> alter table DemoTable1982 ENGINE='MyISAM'; Query OK, 0 rows affected (0.00 sec) Records: 0 Duplicates: 0 Warnings: 0
现在让我们检查一下表引擎的类型 -
mysql> show create table DemoTable1982;
这会产生以下输出 -
+---------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | Table | Create Table | +---------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | DemoTable1982 | CREATE TABLE `demotable1982` ( `StudentId` int(11) DEFAULT NULL, `StudentName` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL, `StudentAge` int(11) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci | +---------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec)
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