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3 年
面试被问到SQL | delete、truncate、drop 有什么区别?
然而我们做数据库开发,读取数据库数据.对另外的两兄弟用得就比较少了 现在来介绍另外两个兄弟,都是删除表数据的,其实也是很容易理解的 老大-----drop 出没场合:drop table tb --tb表示数据表的名字,下同 绝招: 删除内容和定义,释放空间。 简单来说就是 把整个表 ...
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