-- truncate is faster - like select all delete all but in DELETE it's like backspace where one by one data is deleted alter table emp_info drop column location; -- since column has to be deleted ...

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在SQL中delete和truncate命令都可用于删除数据（记录），那么它们之间有什么区别？ 执行该语句后，表中将只包含两条记录：student_id为1和3的记录。

This article explains the use and difference of delete, truncate and drop statements of mysql.1. delete : delete command is used to delete all or specific records from mysql table. the records delete ...

Sql truncate table using this statement you can remove all data of rows or column ( complete data ) not table. in this there is no where clause but where clause is available in delete statement.

A TRUNCATE statement is preferred since it just drops all data pages associated with the table, does not fire table triggers, and resets IDENTITY columns. In the case above, I resorted to using DELETE ...