查看mysql版本
mysql -v
或者可以登录mysql使用select version();或status;命令查看
二、开始工作
关闭mysql
service mysql stop
如果上面的命令无法关闭mysql，则使用kill -9命令强制杀掉进程；
修改mysql配置文件my.cnf（通常位于/etc/mysql/my.cnf）下加入如下字段
对于mysql 5.5而言：
default-storage-engine=myisam
loose-skip-innodb
loose-innodb-trx=0
loose-innodb-locks=0
loose-innodb-lock-waits=0
loose-innodb-cmp=0
loose-innodb-cmp-per-index=0
loose-innodb-cmp-per-index-reset=0
loose-innodb-cmp-reset=0
loose-innodb-cmpmem=0
loose-innodb-cmpmem-reset=0
loose-innodb-buffer-page=0
loose-innodb-buffer-page-lru=0
loose-innodb-buffer-pool-stats=0
对于mysql 5.6而言：
default-storage-engine=myisam
default-tmp-storage-engine=myisam
loose-skip-innodb
loose-innodb-trx=0
loose-innodb-locks=0
loose-innodb-lock-waits=0
loose-innodb-cmp=0
loose-innodb-cmp-per-index=0
loose-innodb-cmp-per-index-reset=0
loose-innodb-cmp-reset=0
loose-innodb-cmpmem=0
loose-innodb-cmpmem-reset=0
loose-innodb-buffer-page=0
loose-innodb-buffer-page-lru=0
loose-innodb-buffer-pool-stats=0
loose-innodb-metrics=0
loose-innodb-ft-default-stopword=0
loose-innodb-ft-inserted=0
loose-innodb-ft-deleted=0
loose-innodb-ft-being-deleted=0
loose-innodb-ft-config=0
loose-innodb-ft-index-cache=0
loose-innodb-ft-index-table=0
loose-innodb-sys-tables=0
loose-innodb-sys-tablestats=0
loose-innodb-sys-indexes=0
loose-innodb-sys-columns=0
loose-innodb-sys-fields=0
loose-innodb-sys-foreign=0
loose-innodb-sys-foreign-cols=0
三、查看成效
登录mysql
mysql -uroot -p你的密码
显示使用的数据库引擎
show engines
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
| engine | support | comment | transactions | xa | savepoints |
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
| federated | no | federated mysql storage engine | null | null | null |
| csv | yes | csv storage engine | no | no | no |
| mrg_myisam | yes | collection of identical myisam tables | no | no | no |
| blackhole | yes | /dev/null storage engine (anything you write to it disappears) | no | no | no |
| memory | yes | hash based, stored in memory, useful for temporary tables | no | no | no |
| innodb | no | supports transactions, row-level locking, and foreign keys | null | null | null |
| archive | yes | archive storage engine | no | no | no |
| myisam | default | myisam storage engine | no | no | no |
| performance_schema | yes | performance schema | no | no | no |
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
9 rows in set (0.00 sec)