查看mysql中表的存儲(chǔ)引擎類(lèi)型的方法:1、使用【show table status from 數(shù)據(jù)庫(kù)庫(kù)名 where name='表名'】;2、查看mysql服務(wù)器是否啟用InnoDB存儲(chǔ)引擎。
查看mysql中表的存儲(chǔ)引擎類(lèi)型的方法:
1.show table status from 數(shù)據(jù)庫(kù)庫(kù)名 where name='表名',例:
mysql> SHOW TABLE STATUS from mytest where Name='test'; +------------+--------+---------+------------+------+----------------+-------------+(省略部分結(jié)果) | Name | Engine | Version | Row_format | Rows | Avg_row_length | Data_length |(省略部分結(jié)果) +------------+--------+---------+------------+------+----------------+-------------+(省略部分結(jié)果) | test | MyISAM | 10 | Fixed | 0 | 0 | 0 |(省略部分結(jié)果) +------------+--------+---------+------------+------+----------------+-------------+(省略部分結(jié)果) 1 row in set (0.02 sec) mysql>
看到Engine對(duì)應(yīng)的值是MyISAM
2.mysqlshow -u 數(shù)據(jù)庫(kù)登錄賬號(hào)用戶(hù)名 -p'數(shù)據(jù)庫(kù)登錄賬號(hào)密碼' –status 數(shù)據(jù)庫(kù)庫(kù)名 表名
mysqlshow -uroot -p'mypassword' --status mytest test Database:mytest Wildcard: test +------------+--------+---------+------------+------+----------------+-------------+(省略部分結(jié)果) | Name | Engine | Version | Row_format | Rows | Avg_row_length | Data_length |(省略部分結(jié)果) +------------+--------+---------+------------+------+----------------+-------------+(省略部分結(jié)果) | test | MyISAM | 10 | Fixed | 0 | 0 | 0 |(省略部分結(jié)果) +------------+--------+---------+------------+------+----------------+-------------+(省略部分結(jié)果)
可以看到Engine對(duì)應(yīng)的值是MyISAM
3.show create table 表名
這種方法有時(shí)候是不準(zhǔn)確的,例:
服務(wù)器配置沒(méi)有啟用InnoDB存儲(chǔ)引擎,在創(chuàng)建表的時(shí)候設(shè)置的是InnoDB存儲(chǔ)引擎,創(chuàng)建表時(shí)的命令:
mysql> create database mytest; Query OK, 1 row affected (0.02 sec) mysql> use mytest; Database changed mysql> CREATE TABLE test ( -> id INT(11) default NULL auto_increment, -> s char(60) default NULL, -> PRIMARY KEY (id) -> ) ENGINE=InnoDB; Query OK, 0 rows affected, 2 warnings (0.06 sec) mysql>
此時(shí)使用上面的方法1和2查看會(huì)看到test表使用的引擎是MyISAM,但是使用3查看會(huì)看到如上的結(jié)果。而實(shí)際上test表使用的存儲(chǔ)引擎是MyISAM的。
4.查看mysql服務(wù)器是否啟用InnoDB存儲(chǔ)引擎:
返回結(jié)果是: "InnoDB" 對(duì)應(yīng)的 "Support"等于 “NO” ,表示未啟用 InnoDB 存儲(chǔ)引擎。
mysql> SHOW ENGINES; +------------+---------+----------------------------------------------------------+(省略部分結(jié)果) | Engine | Support | Comment |(省略部分結(jié)果) +------------+---------+----------------------------------------------------------+(省略部分結(jié)果) | InnoDB | NO | Supports transactions, row-level locking, and foreign keys|(省略部分結(jié)果) | MRG_MYISAM | YES | Collection of identical MyISAM tables |(省略部分結(jié)果) | BLACKHOLE | YES | /dev/null storage engine (anything you write to it disa(省略部分結(jié)果) | CSV | YES | CSV storage engine |(省略部分結(jié)果) | MEMORY | YES | Hash based, stored in memory, useful for temporary tables|(省略部分結(jié)果) | FEDERATED | NO | Federated MySQL storage engine |(省略部分結(jié)果) | ARCHIVE | YES | Archive storage engine |(省略部分結(jié)果) | MyISAM | DEFAULT | Default engine as of MySQL 3.23 with great performance|(省略部分結(jié)果) +------------+---------+----------------------------------------------------------+(省略部分結(jié)果) 8 rows in set (0.00 sec) mysql>
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