求asp 对mssql数据库的操作语句 1,删除表主键,修改标识为否 2,添加表主键,修改标识为是的语句

发布网友发布时间：2022-04-11 11:29

共2个回答

懂视网时间：2022-04-11 15:50

TABLE [dbo].[BASE_UserInDept]( [HospitalID] [int] NOT NULL, [UserID] [int] NOT NULL, [DeptCode] [varchar](10) NOT NULL, [RoleID] [int] NOT NULL ) ON [PRIMARY]　　 GO

2、可以在建表的时候添加主键

CREATE TABLE [dbo].[BASE_UserInDept](
 [HospitalID] [int] NOT NULL,
 [UserID] [int] NOT NULL,
 [DeptCode] [varchar](10) NOT NULL,
 [RoleID] [int] NOT NULL,
--添加主键约束
 CONSTRAINT [PK_BASE_UserInDept] PRIMARY KEY CLUSTERED 
(
 [HospitalID] ASC,
 [UserID] ASC,
 [DeptCode] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, OPTIMIZE_FOR_SEQUENTIAL_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
GO

--添加主键DF_BASE_UserInDept默认约束

ALTER TABLE [dbo].[BASE_UserInDept] ADD CONSTRAINT [DF_BASE_UserInDept] DEFAULT ((0)) FOR [RoleID]
GO

3、也可以直接使用

ALTER TABLE table ADD CONSTRAINT 键名 PRIMARY KEY ...添加

ALTER TABLE [dbo].[BASE_UserInDept] ADD  CONSTRAINT [PK_BASE_UserInDept] PRIMARY KEY CLUSTERED 
(
 [HospitalID] ASC,
 [UserID] ASC,
 [DeptCode] ASC
)ON [PRIMARY]

4、清空表数据语法

TRUNCATE TABLE name

mssql清空数据和添加主键约束语法

标签：spi clu code class tab col create trunc sql

热心网友时间：2022-04-11 12:58

asp删除表主键
conn.execute"alter table [数据表] drop primary key (主键字段)"

asp添加表主键
conn.execute"alter table [数据表] add primary key (主键字段) "

asp修改标识为否目前没有有效的解决办法
---------------------
貌似标识只能从mssql软件上修改