sql server 2000 递归显示数据

最新推荐文章于 2022-04-26 17:45:00 发布

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最新推荐文章于 2022-04-26 17:45:00 发布

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分类专栏： SQL Server 文章标签： sql server insert statistics table object date

本文链接：https://blog.youkuaiyun.com/zhuyaojun/article/details/6045008

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本文介绍了一个包含用户、用户组及它们之间关联关系的数据库设计方案。该方案通过多个表（如用户信息表、用户组表等）来组织数据，并利用外键约束确保数据一致性。此外，还提供了一个递归函数用于获取用户所属的所有子单位。

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USE [T]
GO
/****** Object: Table [dbo].[tblUserGroup]    Script Date: 11/30/2010 11:14:18 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[tblUserGroup](
[UID] [varchar](64) NOT NULL,
[GID] [varchar](50) NOT NULL,
CONSTRAINT [PK_tblUserGroup] PRIMARY KEY CLUSTERED
(
[UID] ASC,
[GID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
INSERT [dbo].[tblUserGroup] ([UID], [GID]) VALUES (N'u1', N'g2')
INSERT [dbo].[tblUserGroup] ([UID], [GID]) VALUES (N'u1', N'g3')
INSERT [dbo].[tblUserGroup] ([UID], [GID]) VALUES (N'u2', N'g5')
/****** Object: Table [dbo].[tblGroupGroup]    Script Date: 11/30/2010 11:14:18 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[tblGroupGroup](
[ID] [varchar](50) NOT NULL,
[CID] [varchar](50) NOT NULL,
CONSTRAINT [PK_tblGroupGroup] PRIMARY KEY CLUSTERED
(
[ID] ASC,
[CID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
INSERT [dbo].[tblGroupGroup] ([ID], [CID]) VALUES (N'g1', N'g5')
INSERT [dbo].[tblGroupGroup] ([ID], [CID]) VALUES (N'g2', N'g1')
INSERT [dbo].[tblGroupGroup] ([ID], [CID]) VALUES (N'g5', N'g2')
INSERT [dbo].[tblGroupGroup] ([ID], [CID]) VALUES (N'g5', N'g3')
/****** Object: Table [dbo].[tblUserInfo]    Script Date: 11/30/2010 11:14:18 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[tblUserInfo](
[ID] [varchar](64) NOT NULL,
CONSTRAINT [PK_tblUserInfo] PRIMARY KEY CLUSTERED
(
[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
INSERT [dbo].[tblUserInfo] ([ID]) VALUES (N'u1')
INSERT [dbo].[tblUserInfo] ([ID]) VALUES (N'u2')
/****** Object: Table [dbo].[tblGroup]    Script Date: 11/30/2010 11:14:18 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[tblGroup](
[ID] [varchar](50) NOT NULL,
CONSTRAINT [PK_tblGroup] PRIMARY KEY CLUSTERED
(
[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
INSERT [dbo].[tblGroup] ([ID]) VALUES (N'g1')
INSERT [dbo].[tblGroup] ([ID]) VALUES (N'g2')
INSERT [dbo].[tblGroup] ([ID]) VALUES (N'g3')
INSERT [dbo].[tblGroup] ([ID]) VALUES (N'g4')
INSERT [dbo].[tblGroup] ([ID]) VALUES (N'g5')
/****** Object: UserDefinedFunction [dbo].[GetChildUnit]    Script Date: 11/30/2010 11:14:19 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE Function [dbo].[GetChildUnit](@id varchar(50), @Level int)
Returns @t table(id varchar(50),cid varchar(50),Level int)
As
Begin
if @Level>=32
  return
declare @tt table(id varchar(50),cid varchar(50),l int)
set @Level=@Level+1
if @Level=1
  insert into @tt select tblgroupgroup.*,@Level from tblusergroup inner join tblgroupgroup on id=gid where uid=@id
else
  insert into @tt select *,@Level from tblgroupgroup where id=@id
insert into @t select * from @tt

DECLARE @cid varchar(50)
  DECLARE cc CURSOR FOR select cid from @tt
open cc
  FETCH NEXT FROM cc INTO @cid
  WHILE @@FETCH_STATUS = 0
  begin
   insert into @t select * from GetChildUnit(@cid,@Level)
   FETCH NEXT FROM cc INTO @cid
  end
close cc
DEALLOCATE cc

    Return
End
GO
/****** Object: ForeignKey [FK_tblUserGroup_tblUserGroup]    Script Date: 11/30/2010 11:14:18 ******/
ALTER TABLE [dbo].[tblUserGroup] WITH CHECK ADD CONSTRAINT [FK_tblUserGroup_tblUserGroup] FOREIGN KEY([UID], [GID])
REFERENCES [dbo].[tblUserGroup] ([UID], [GID])
GO
ALTER TABLE [dbo].[tblUserGroup] CHECK CONSTRAINT [FK_tblUserGroup_tblUserGroup]
GO