SQL DELETE

最后编辑于2019-10-12 11:33:18 +0800 CST

DELETE 语句

DELETE 语句用于删除表中的行。

语法

sql
1DELETE FROM 表名称 WHERE 列名称 = 

Person:

LastName FirstName Address City
Gates Bill Xuanwumen 10 Beijing
Wilson Fred Zhongshan 23 Nanjing

删除某行

“Fred Wilson” 会被删除:

sql
1DELETE FROM Person WHERE LastName = 'Wilson' 

结果:

LastName FirstName Address City
Gates Bill Xuanwumen 10 Beijing

删除所有行

可以在不删除表的情况下删除所有的行。这意味着表的结构、属性和索引都是完整的:

sql
1DELETE FROM table_name

或者:

sql
1DELETE * FROM table_name