DELETE 语句
DELETE 语句用于删除表中的行。
语法
DELETEFROM表名称WHERE列名称=值
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:
DELETEFROMPersonWHERELastName='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:
DELETEFROMtable_name
或者:
DELETE*FROMtable_name