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mysql 不等于 符号写法_MySQL

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Release: 2016-06-01 13:25:22
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bitsCN.com 经过测试发现mysql中用与!=都是可以的,但sqlserver中不识别!=,所以建议用

selece * from jb51 where id45

sql 里 符号 于 != 的区别

与!=都是不等于的意思,但是一般都是用来代码不等于因为在任何SQL中都起作用但是!=在sql2000中用到,则是语法错误,不兼容的bitsCN.com

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