回答:谢谢邀请。可能还有:where 1= 0 where 11...小结:像这种写法,一般用于拼接 SQL语句的用法中,不管是 ORACLE, 还是 SQL SERVER,都支持这种特殊的写法。希望能对你有所帮助,谢谢。(结束)
回答:可以的,想知道会不会用到索引直接在语句前加上explain 关键字执行下就知道了,我有发布过关于怎么建索引的文章你可以查看下就清楚了
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