驱除mysql表中数据
清除mysql表中数据 delete from ? 表名 ; truncate table ? 表名 ; 不带 where 参数的 delete 语句可以删除 mysql 表中所有内容,使用 truncate table 也可以清空 mysql 表中所有内容。 效率上 truncate 比 delete 快,但 truncate 删除后不记录 mysql 日志,
清除mysql表中数据delete from?表名;
truncate table?表名;
不带where参数的delete语句可以删除mysql表中所有内容,使用truncate table也可以清空mysql表中所有内容。
效率上truncate比delete快,但truncate删除后不记录mysql日志,不可以恢复数据。
delete的效果有点像将mysql表中所有记录一条一条删除到删完,
而truncate相当于保留mysql表的结构,重新创建了这个表,所有的状态都相当于新表。

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