德骏网站建设,怎么查看网站ftp地址,网站收录情况查询,网络推广渠道MYSQL学习笔记#xff1a;MYSQL存储引擎
MYSQL是插件式的存储引擎 存储引擎影响数据的存储方式 存储引擎是用来干什么的#xff0c;innodb和myisam的主要区别–数据存储方式----索引
mysql show engines;
----------------------------------------------------------…MYSQL学习笔记MYSQL存储引擎
MYSQL是插件式的存储引擎 存储引擎影响数据的存储方式 存储引擎是用来干什么的innodb和myisam的主要区别–数据存储方式----索引
mysql show engines;
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| Engine | Support | Comment | Transactions | XA | Savepoints |
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| 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 |
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9 rows in set (0.00 sec)MYISAM存储引擎表结构单独存一个数据存一个索引单独存一个 INNODB 数据和索引是存在一个结构里面的
各种存储引擎的区别
