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SQL DELETE 语句详解

时间:2016-05-31 19:03:50      阅读:347      评论:0      收藏:0      [点我收藏+]

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DELETE 语句

DELETE 语句用于删除表中的行。

语法

DELETE FROM 表名称 WHERE 列名称 = 值

Person:

LastNameFirstNameAddressCity
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:

LastNameFirstNameAddressCity
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

SQL DELETE 语句详解

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原文地址:http://www.cnblogs.com/MuNet/p/5546884.html

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