Mysql where '字符串' 条件细节

原創 未来无限 2020-02-22 11:50

实际上在执行where 条件的时候 无论where后面的整体是什么,最后的结果都强转成了数字(强转规则就是上面的) 然后通过转的数字跟0作为比较,如果是等于0则结果为0 即false ,如果不为0 结果为1 即true ,所以 where 的是true 还是 false 你还不明白吗?!

原文链接：https://blog.csdn.net/qq_40081976/article/details/83418691

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