MYSQL中InnoDB是什么?[转]-Mysql Tutorial-php.cn

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MYSQL中InnoDB是什么?[转]

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Jun 07, 2016 pm 03:02 PM

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一种表驱动,除了innodb还有其它的,例如isam,myisam等. innodb的特色在于支持并发与表间引用 MySQL支持多种存储引擎，用户可以方便的选用不同的存储引擎来支持自己的应用，每种不同的存储引擎都有其自己的特性 Innodb是其中的一种存储引擎，它的特性是支持事

一种表驱动,除了innodb还有其它的,例如isam,myisam等.

innodb的特色在于支持并发与表间引用
MySQL支持多种存储引擎，用户可以方便的选用不同的存储引擎来支持自己的应用，每种不同的存储引擎都有其自己的特性

Innodb是其中的一种存储引擎，它的特性是支持事务，并且采用多版本并发控制的方式来提高并发度
主要是事务表，当一个事务全部完成，才会执行update．如果一段代码没有完成（及一个事务操作没有完成）它是不会update的，例如：银行转帐，一笔业务没有完成的时候，突然的断电，或是，网络，系统的原因使你无法完成此交易的话，这个事务是要回滚的此交易之前的状态的，没有完成交易，你银行的 money是不会减少的！缺点是，innoDB的表执行起来速度较慢，但是安全！bbs的表要求的是速度，用的都是myisam的表！不知这样通俗的说，你是否理解？

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