目录一、引言二、分析1、Innodb不存在锁升级2、当for update一个不存在的where条件时3、Innodb如果在索引中找不到记录4、Innodb加锁的方式是从上到下的5、RR级别加锁情况三、总结一、引言
When I started to write the first SQL-Statements in my programs I felt quite comfortable with protecting myself against SQL-Injection with a very simple method that a colleague showed me. It replaced