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sql server创建复合主键的2种方法

WBOY
WBOYOriginal
2016-06-07 17:55:001400browse

sql server创建复合主键的2种方法,需要的朋友可以参考一下

创建复合主键:

方法一:创建表之后,alter table table_name add primary key(字段1,字段2)

方法二:CREATE TABLE 表名 (字段名1 Int Not Null,
字段名2 nvarchar(13) Not Null
字段名3…………
字段名N…………)
GO

ALTER TABLE 表名 WITH NOCHECK ADD
CONSTRAINT [PK_表名] PRIMARY KEY NONCLUSTERED
(
[字段名1],
[字段名2]
)
GO
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