权限管理----角色管理

下面示图为角色管理介面。在数据表[Role]中，最少需要两个字段[RoleId]和[RoleName]。Project中所有角色在此介面进行管理。

 

下面为表[Role]结构，直接拷贝在sql Server2008查询分析器执行:

ET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE TABLE [dbo].[Role](
    [RoleId] [smallint] IDENTITY(1,1) NOT NULL,
    [RoleName] [nvarchar](50) NOT NULL,
    [Description] [nvarchar](100) NOT NULL,
PRIMARY KEY CLUSTERED 
(
    [RoleId] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY],
 CONSTRAINT [UK_Role_UD980sA6] UNIQUE NONCLUSTERED 
(
    [RoleName] 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

  

插入的存储过程usp_Role_Insert：

SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE   PROCEDURE [dbo].[usp_Role_Insert]
(
    @RoleName nvarchar(50),
    @Description nvarchar(50)
)
AS    
 SELECT [RoleName] FROM [Role] WHERE [RoleName]=@RoleName
IF @@ROWCOUNT>0
BEGIN
    RAISERROR(N'此角色已经存在，无法添加！',16,1)
    RETURN
END
ELSE

  BEGIN TRANSACTION
        DECLARE @err int
            INSERT INTO dbo.Role([RoleName],[Description]) VALUES (@RoleName,@Description)
        SET @err=@@ERROR
        IF @err<>0    
        BEGIN
    ROLLBACK TRANSACTION        
        END
        
    COMMIT TRANSACTION

  

最后即是更新的存储过程usp_Role_Update：

SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE  PROCEDURE [dbo].[usp_Role_Update]
(
@ID tinyint,
@RoleName nvarchar(50),
@Description nvarchar(50)
)
AS    
 SELECT [RoleName] FROM [Role] WHERE [RoleName]=@RoleName AND [RoleId] <> @ID
IF @@ROWCOUNT>0
BEGIN
    RAISERROR(N'此角色已经存在，无法更新！',16,1)
    RETURN
END
ELSE

  BEGIN TRANSACTION
        DECLARE @err int
            UPDATE [Role] SET [RoleName]=@RoleName,[Description]=@Description WHERE [RoleId]=@ID
        SET @err=@@ERROR
        IF @err<>0    
        BEGIN
    ROLLBACK TRANSACTION        
        END
        
    COMMIT TRANSACTION

GO