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查看当前数据库支持的引擎
show engines +--------------------+---------+----------------------------------------------------------------+--------------+------+------------+ | Engine | Support | Comment | Transactions | XA | Savepoints | +--------------------+---------+----------------------------------------------------------------+--------------+------+------------+ | InnoDB | DEFAULT | Supports transactions, row-level locking, and foreign keys | YES | YES | YES | | MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO | | MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO | | BLACKHOLE | YES | /dev/null storage engine (anything you write to it disappears) | NO | NO | NO | | MyISAM | YES | MyISAM storage engine | NO | NO | NO | | CSV | YES | CSV storage engine | NO | NO | NO | | ARCHIVE | YES | Archive storage engine | NO | NO | NO | | PERFORMANCE_SCHEMA | YES | Performance Schema | NO | NO | NO | | FEDERATED | NO | Federated MySQL storage engine | NULL | NULL | NULL | +--------------------+---------+----------------------------------------------------------------+--------------+------+------------+ 9 rows in set (0.00 sec)
或者
show engines \G mysql> show engines \G *************************** 1. row *************************** Engine: InnoDB Support: DEFAULT Comment: Supports transactions, row-level locking, and foreign keys Transactions: YES XA: YES Savepoints: YES *************************** 2. row *************************** Engine: MRG_MYISAM Support: YES Comment: Collection of identical MyISAM tables Transactions: NO XA: NO Savepoints: NO *************************** 3. row *************************** Engine: MEMORY Support: YES Comment: Hash based, stored in memory, useful for temporary tables Transactions: NO XA: NO Savepoints: NO *************************** 4. row *************************** Engine: BLACKHOLE Support: YES Comment: /dev/null storage engine (anything you write to it disappears) Transactions: NO XA: NO Savepoints: NO *************************** 5. row *************************** Engine: MyISAM Support: YES Comment: MyISAM storage engine Transactions: NO XA: NO Savepoints: NO *************************** 6. row *************************** Engine: CSV Support: YES Comment: CSV storage engine Transactions: NO XA: NO Savepoints: NO *************************** 7. row *************************** Engine: ARCHIVE Support: YES Comment: Archive storage engine Transactions: NO XA: NO Savepoints: NO *************************** 8. row *************************** Engine: PERFORMANCE_SCHEMA Support: YES Comment: Performance Schema Transactions: NO XA: NO Savepoints: NO *************************** 9. row *************************** Engine: FEDERATED Support: NO Comment: Federated MySQL storage engine Transactions: NULL XA: NULL Savepoints: NULL 9 rows in set (0.00 sec)
Engine 引擎的名称
Support 是否支付YES表示支持,NO表示不支持
Comment 评价或者备注 Defalut表示,默认支持的引擎
Transactions 是否支持事务,YES表示支持,NO表示不支持
XA 所有支持的分布式是否符合XA规范,YES表示支持,NO表示不支持
Savepoints 是否支持事务处理中的保存点,YES表示支持,NO表示不支持
或者
show variables like ‘have%'
mysql> show variables like 'have%'; +------------------------+----------+ | Variable_name | Value | +------------------------+----------+ | have_compress | YES | | have_crypt | NO | | have_dynamic_loading | YES | | have_geometry | YES | | have_openssl | DISABLED | | have_profiling | YES | | have_query_cache | YES | | have_rtree_keys | YES | | have_ssl | DISABLED | | have_statement_timeout | YES | | have_symlink | YES | +------------------------+----------+ 11 rows in set, 1 warning (0.00 sec)
Variable_name 引擎名称
value 是否支持YES支持,NO不支持,DISABLED表示支持但未启用
查看默认引擎
show variables like ‘%storage_engine%'
mysql> show variables like '%storage_engine%'; +----------------------------------+--------+ | Variable_name | Value | +----------------------------------+--------+ | default_storage_engine | InnoDB | | default_tmp_storage_engine | InnoDB | | disabled_storage_engines | | | internal_tmp_disk_storage_engine | InnoDB | +----------------------------------+--------+ 4 rows in set, 1 warning (0.00 sec)
InnoDB 为默认引擎
修改默认引擎
my.ini文件
[mysqld] # The next three options are mutually exclusive to SERVER_PORT below. # skip-networking # enable-named-pipe # shared-memory # shared-memory-base-name=MYSQL # The Pipe the MySQL Server will use # socket=MYSQL # The TCP/IP Port the MySQL Server will listen on 默认端口号 port=3306 # Path to installation directory. All paths are usually resolved relative to this. 服务器的默认安装目录 # basedir="C:/Program Files/MySQL/MySQL Server 5.7/" # Path to the database root 数据库数据文件的目录 datadir=C:/ProgramData/MySQL/MySQL Server 5.7\Data # The default character set that will be used when a new schema or table is # created and no character set is defined 修改服务器默认字符 character-set-server=utf8 # The default storage engine that will be used when create new tables when # 这里修改默认引擎 default-storage-engine=INNODB
修改后重启Mysql服务
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