SQL DELETE 語句

DELETE 語句

DELETE 語句用於刪除表中的行。

語法

DELETE FROM 表名稱 WHERE 列名稱 = 值

Person:

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

刪除某行

"Fred Wilson" 會被刪除：

DELETE FROM Person WHERE LastName = 'Wilson' 

結果:

LastName	FirstName	Address	City
Gates	Bill	Xuanwumen 10	Beijing

刪除所有行

可以在不刪除表的情況下刪除所有的行。這意味着表的結構、屬性和索引都是完整的：

DELETE FROM table_name

或者：

DELETE * FROM table_name