DELETE 声明

The DELETE statement is used to delete rows in a table.
DELETE 声明常用来删除表中的数据。

语法

DELETE FROM table_name
WHERE column_name = some_value

Person:

Delete a Row
删除一条记录

"Nina Rasmussen" is going to be deleted:
"Nina Rasmussen" 的所有个人信息将被删除：

DELETE FROM Person WHERE LastName = 'Rasmussen'

结果

Delete All Rows
删除所有记录

It is possible to delete all rows in a table without deleting the table. This means that the table structure, attributes, and indexes will be intact:
可以不删除数据表且删除里面的所有记录行。这就意味着数据表构架，属性以及索引都会完整保留：

DELETE FROM table_name

或

DELETE * FROM table_name

SQL Update SQL 技能测试

评论 (0) All