SQL DELETE 语句

DELETE 语句

DELETE 语句用于删除表中的行，包括一行或者多行和全部记录。

语法

DELETE FROM 表名称 WHERE 列名称 = 值;
或者：DELETE * FROM 表名称;
DELETE FROM table_name;

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：

DELETE 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：

DELETE FROM table_name;

或者：

DELETE * FROM table_name;