SQL DELETE 语句
DELETE 语句用于删除表中的行，语法如下：

DELETE FROM 表名称 WHERE 列名称 = 值

"Person" 表：

LastName    FirstName    Address            City
Carter      Thomas       Changan Street	    Beijing
Wilson      Fred         Zhongshan 23       Nanjing

删除某行

DELETE FROM Person WHERE LastName = "Wilson" 

结果:

LastName    FirstName    Address            City
Carter      Thomas       Changan Street	    Beijing

注释：本实例 "Person" 表中 "Fred Wilson" 被删除。

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