1、修改建表引擎
mysql> CREATE TABLE test_2( -> name varchar(10), -> year int(10)) -> ENGINE=InnoDB; -->创建表时指定默认引擎 Query OK, 0 rows affected (0.10 sec) mysql> show create table test_2\G *************************** 1. row *************************** Table: test_2 Create Table: CREATE TABLE `test_2` ( `name` varchar(10) DEFAULT NULL, `year` int(10) DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1 1 row in set (0.00 sec) mysql> mysql> show tables; +------------------+ | Tables_in_excise | +------------------+ | test1 | | test_1 | +------------------+ 2 rows in set (0.00 sec) mysql> show create table test_1\G *************************** 1. row *************************** Table: test_1 Create Table: CREATE TABLE `test_1` ( `name` varchar(20) DEFAULT NULL, `year` int(5) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 --> 默认的表引擎为MyISAM; 1 row in set (0.00 sec) mysql> alter table test_1 type=InnoDB; --> 修改表的数据引擎; Query OK, 0 rows affected, 1 warning (0.11 sec) Records: 0 Duplicates: 0 Warnings: 0 mysql> show create table test_1\G *************************** 1. row *************************** Table: test_1 Create Table: CREATE TABLE `test_1` ( `name` varchar(20) DEFAULT NULL, `year` int(5) DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1 --> 显示表的数据引擎已经变为InnoDB; 1 row in set (0.00 sec) mysql>
2、
mysql> show engines; --> 查看MySQL支持引擎 +------------+---------+------------------------------------------------------------+--------------+------+------------+ | Engine | Support | Comment | Transactions | XA | Savepoints | +------------+---------+------------------------------------------------------------+--------------+------+------------+ | MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO | | CSV | YES | CSV storage engine | NO | NO | NO | | MyISAM | DEFAULT | Default engine as of MySQL 3.23 with great performance | NO | NO | NO | | InnoDB | YES | Supports transactions, row-level locking, and foreign keys | YES | YES | YES | | MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO | +------------+---------+------------------------------------------------------------+--------------+------+------------+ 5 rows in set (0.00 sec) mysql>