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https://guluo2016.github.io/2022/08/16/mysql%E4%B8%AD%E7%9A%84mvcc/#more
综述MVCC全称多版本并发控制。 主要原理就是对于同一份数据,在数据库中存储多份,每一份都是一个版本。然后根据事务发生的先后顺序,来决定哪些版本的数据对该事务可见,从而实现并发控制。 MVCC主要解决的问题 MVCC主要解决的是读写并发问题,可以在无锁情况下实现读写并发,从而可以提交读写效率。 关系型数据库中的读已提交、可重复读事务的隔离等级就是基于MVCC实现的。
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https://guluo2016.github.io/2022/08/16/mysql%E4%B8%AD%E7%9A%84mvcc/#more
综述MVCC全称多版本并发控制。 主要原理就是对于同一份数据,在数据库中存储多份,每一份都是一个版本。然后根据事务发生的先后顺序,来决定哪些版本的数据对该事务可见,从而实现并发控制。 MVCC主要解决的问题 MVCC主要解决的是读写并发问题,可以在无锁情况下实现读写并发,从而可以提交读写效率。 关系型数据库中的读已提交、可重复读事务的隔离等级就是基于MVCC实现的。
The text was updated successfully, but these errors were encountered: