page-level locking的意思|示意
页面级锁
page-level locking的网络常见释义
页级锁 InnoDB也会升级为表级锁,全表/全索引更新,请求autoinc锁等 page-level locking(页级锁) 锁定表中某些行集合(称做页),被锁定的行只对锁定最初的线程是可行。
页面锁 页面锁(page-level locking):开销和加锁时间介于表锁和行锁之间;会出现死锁;锁定粒度介于表锁和行锁之间,并发度一般
page-level locking相关例句
Some databases (such as SQL Server) allow you to disable the page-level locking in hopes that it won't escalate from a row-level lock to a table-level lock.
一些数据库(比如sql Server)允许您禁用页面级锁,以期它不会从行级锁切换到表级锁。
Tables created by Informix default to page-level locking, so when two or more users attempt to update a row on the same page, at least one will get a lock error.
Informix 创建的表默认执行了页面级锁定,所以当两个或更多用户尝试更新同一页面中的一行时,至少一个用户将获得锁定错误。
To determine which tables in a database have page-level locking and need to be modified to row-level locking, I use a helpful SQL script: genlockmod.sql (see Listing 1).
为了确定数据库中的哪些表具有页面级锁定以及需要修改为行级别锁定,我使用了一段sql脚本:genlockmod . sql(参见清单1)。
This script will read the Informix system tables, find out which tables have page-level locking, and then generate another SQL script to change those tables to row-level locking.
此脚本将读取Informix系统表,找出哪些表具有页面级锁定,然后生成另一段sql脚本来将这些表更改为行级别锁定。
Locking escalation to page-level or table-level locking.
从页面级锁升级到表级锁。