检索插入的唯一行，该行不是Uniqueidentifier，而是IDENTITY

Question

我对查询感到困惑。

我需要找出添加到表中的最后一行，该表的数据类型为Uniqueidentifier列为：aspnet_Applications.ApplicationId注意：此列Uniqueidentifier不是NOT和IDENTITY列。

我还需要插入最后一行并在其他表aspnet_Users.ApplicationId上更新它

我尝试在MS SQL 2008中使用SCOPE_IDENTITY，但由于SCOPE_IDENTITY仅与IDENTITY列一起使用而无法使用。

这是我的代码。有任何想法吗？

    CREATE DATABASE Test;
GO
USE Test;
GO

-- Create entities
CREATE TABLE [dbo].[aspnet_Applications](
    [ApplicationName] [nvarchar](256) NOT NULL,
    [LoweredApplicationName] [nvarchar](256) NOT NULL,
    [ApplicationId] [uniqueidentifier] NOT NULL,
    [Description] [nvarchar](256) NULL,
PRIMARY KEY NONCLUSTERED 
(
    [ApplicationId] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY],
UNIQUE NONCLUSTERED 
(
    [LoweredApplicationName] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY],
UNIQUE NONCLUSTERED 
(
    [ApplicationName] 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

ALTER TABLE [dbo].[aspnet_Applications] ADD  DEFAULT (newid()) FOR [ApplicationId]
GO


CREATE TABLE [dbo].[aspnet_Users](
    [ApplicationId] [uniqueidentifier] NOT NULL,
    [UserId] [uniqueidentifier] NOT NULL,
    [UserName] [nvarchar](256) NOT NULL,
    [LoweredUserName] [nvarchar](256) NOT NULL,
    [MobileAlias] [nvarchar](16) NULL,
    [IsAnonymous] [bit] NOT NULL,
    [LastActivityDate] [datetime] NOT NULL,
PRIMARY KEY NONCLUSTERED 
(
    [UserId] 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

ALTER TABLE [dbo].[aspnet_Users]  WITH CHECK ADD FOREIGN KEY([ApplicationId])
REFERENCES [dbo].[aspnet_Applications] ([ApplicationId])
GO

ALTER TABLE [dbo].[aspnet_Users] ADD  DEFAULT (newid()) FOR [UserId]
GO

ALTER TABLE [dbo].[aspnet_Users] ADD  DEFAULT (NULL) FOR [MobileAlias]
GO

ALTER TABLE [dbo].[aspnet_Users] ADD  DEFAULT ((0)) FOR [IsAnonymous]
GO

-- Add data
DECLARE @MyIdentity binary(16);
INSERT INTO dbo.aspnet_Applications
(
    ApplicationName,
    LoweredApplicationName,
    Description
)
VALUES
(
    'x',
    'x',
    'Dummy text'
);
SET @MyIdentity = SCOPE_IDENTITY(); -- DOES NOT WORK
PRINT @MyIdentity; -- DOES NOT WORK

INSERT INTO dbo.aspnet_Users
(
    ApplicationId,
    UserName,
    LoweredUserName,
    MobileAlias,
    IsAnonymous,
    LastActivityDate
)
VALUES
(   
    @MyIdentity,
    'Administrator',
    'administrator',
    '',
    0,
    sysutcdatetime()
);

Answer 1

这需要做更多的工作，但是对于您的插入，即使您在ApplicationID上已经具有DEFAULT值，也可以执行以下操作：

DECLARE @MyIdentity uniqueidentifier;
SET @MyIdentity = NewID();
INSERT INTO dbo.aspnet_Applications
(
    ApplicationName,
    LoweredApplicationName,
    ApplicationId, 
    Description
)
VALUES
(
    'x',
    'x',
    @MyIdentity,
    'Dummy text'
);

SELECT @MyIdentity

本质上，您预先设置了GUID，因此您已经知道要插入的内容。