在VS2012中創建存儲過程以一次刪除4個表？

Question

在我正在使用的MVC Web應用程序中，我有4個特定的表，這些表已使用並自動生成用於角色認證。 創建遷移並為數據庫添加種子后，然后運行創建這4個表的應用程序。

每當必須修改我的模型時，由於對Users表的引用限制，我不得不刪除這4個表。 VS2012不允許我同時選擇所有4個表和“刪除”，所以我想知道是否有一種方法可以創建一個存儲過程，讓我可以同時運行4個刪除腳本？

在“ Server Explorer我右鍵單擊“ Stored Prcoedures ，然后選擇“ Add New Stored Procedure 。 然后，向我提供以下模板：

CREATE PROCEDURE [dbo].[Procedure]
    @param1 int = 0,
    @param2 int
AS
    SELECT @param1, @param2
RETURN 0

通過GUI，當我為每個表單擊DELETE時，已復制了以下自動生成的DROP Table命令。

如何在VS2012中創建存儲過程（或多個？）以將所有4個表放在一個命令中？

/*
Deployment script for RandomDBdev

This code was generated by a tool.
Changes to this file may cause incorrect behavior and will be lost if
the code is regenerated.
*/

GO
SET ANSI_NULLS, ANSI_PADDING, ANSI_WARNINGS, ARITHABORT, CONCAT_NULL_YIELDS_NULL, QUOTED_IDENTIFIER ON;

SET NUMERIC_ROUNDABORT OFF;


GO
:setvar DatabaseName "RandomDBdev"
:setvar DefaultFilePrefix "RandomDBdev"
:setvar DefaultDataPath "C:\Users\arandomuser\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\v11.0\"
:setvar DefaultLogPath "C:\Users\arandomuser\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\v11.0\"

GO
:on error exit
GO
/*
Detect SQLCMD mode and disable script execution if SQLCMD mode is not supported.
To re-enable the script after enabling SQLCMD mode, execute the following:
SET NOEXEC OFF; 
*/
:setvar __IsSqlCmdEnabled "True"
GO
IF N'$(__IsSqlCmdEnabled)' NOT LIKE N'True'
    BEGIN
        PRINT N'SQLCMD mode must be enabled to successfully execute this script.';
        SET NOEXEC ON;
    END


GO
USE [$(DatabaseName)];


GO

IF (SELECT OBJECT_ID('tempdb..#tmpErrors')) IS NOT NULL DROP TABLE #tmpErrors
GO
CREATE TABLE #tmpErrors (Error int)
GO
SET XACT_ABORT ON
GO
SET TRANSACTION ISOLATION LEVEL READ COMMITTED
GO
BEGIN TRANSACTION
GO
PRINT N'Dropping [dbo].[webpages_Membership]...';


GO
DROP TABLE [dbo].[webpages_Membership];


GO
IF @@ERROR <> 0
   AND @@TRANCOUNT > 0
    BEGIN
        ROLLBACK;
    END

IF @@TRANCOUNT = 0
    BEGIN
        INSERT  INTO #tmpErrors (Error)
        VALUES                 (1);
        BEGIN TRANSACTION;
    END


GO

IF EXISTS (SELECT * FROM #tmpErrors) ROLLBACK TRANSACTION
GO
IF @@TRANCOUNT>0 BEGIN
PRINT N'The transacted portion of the database update succeeded.'
COMMIT TRANSACTION
END
ELSE PRINT N'The transacted portion of the database update failed.'
GO
DROP TABLE #tmpErrors
GO
PRINT N'Update complete.';


GO
/*----------------------------------------------------------------------------------------------------------------------*/
/*
Deployment script for RandomDBdev

This code was generated by a tool.
Changes to this file may cause incorrect behavior and will be lost if
the code is regenerated.
*/

GO
SET ANSI_NULLS, ANSI_PADDING, ANSI_WARNINGS, ARITHABORT, CONCAT_NULL_YIELDS_NULL, QUOTED_IDENTIFIER ON;

SET NUMERIC_ROUNDABORT OFF;


GO
:setvar DatabaseName "RandomDBdev"
:setvar DefaultFilePrefix "RandomDBdev"
:setvar DefaultDataPath "C:\Users\arandomuser\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\v11.0\"
:setvar DefaultLogPath "C:\Users\arandomuser\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\v11.0\"

GO
:on error exit
GO
/*
Detect SQLCMD mode and disable script execution if SQLCMD mode is not supported.
To re-enable the script after enabling SQLCMD mode, execute the following:
SET NOEXEC OFF; 
*/
:setvar __IsSqlCmdEnabled "True"
GO
IF N'$(__IsSqlCmdEnabled)' NOT LIKE N'True'
    BEGIN
        PRINT N'SQLCMD mode must be enabled to successfully execute this script.';
        SET NOEXEC ON;
    END


GO
USE [$(DatabaseName)];


GO

IF (SELECT OBJECT_ID('tempdb..#tmpErrors')) IS NOT NULL DROP TABLE #tmpErrors
GO
CREATE TABLE #tmpErrors (Error int)
GO
SET XACT_ABORT ON
GO
SET TRANSACTION ISOLATION LEVEL READ COMMITTED
GO
BEGIN TRANSACTION
GO
PRINT N'Dropping [dbo].[webpages_OAuthMembership]...';


GO
DROP TABLE [dbo].[webpages_OAuthMembership];


GO
IF @@ERROR <> 0
   AND @@TRANCOUNT > 0
    BEGIN
        ROLLBACK;
    END

IF @@TRANCOUNT = 0
    BEGIN
        INSERT  INTO #tmpErrors (Error)
        VALUES                 (1);
        BEGIN TRANSACTION;
    END


GO

IF EXISTS (SELECT * FROM #tmpErrors) ROLLBACK TRANSACTION
GO
IF @@TRANCOUNT>0 BEGIN
PRINT N'The transacted portion of the database update succeeded.'
COMMIT TRANSACTION
END
ELSE PRINT N'The transacted portion of the database update failed.'
GO
DROP TABLE #tmpErrors
GO
PRINT N'Update complete.';


GO
/*----------------------------------------------------------------------------------------------------------------------*/
/*
Deployment script for RandomDBdev

This code was generated by a tool.
Changes to this file may cause incorrect behavior and will be lost if
the code is regenerated.
*/

GO
SET ANSI_NULLS, ANSI_PADDING, ANSI_WARNINGS, ARITHABORT, CONCAT_NULL_YIELDS_NULL, QUOTED_IDENTIFIER ON;

SET NUMERIC_ROUNDABORT OFF;


GO
:setvar DatabaseName "RandomDBdev"
:setvar DefaultFilePrefix "RandomDBdev"
:setvar DefaultDataPath "C:\Users\arandomuser\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\v11.0\"
:setvar DefaultLogPath "C:\Users\arandomuser\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\v11.0\"

GO
:on error exit
GO
/*
Detect SQLCMD mode and disable script execution if SQLCMD mode is not supported.
To re-enable the script after enabling SQLCMD mode, execute the following:
SET NOEXEC OFF; 
*/
:setvar __IsSqlCmdEnabled "True"
GO
IF N'$(__IsSqlCmdEnabled)' NOT LIKE N'True'
    BEGIN
        PRINT N'SQLCMD mode must be enabled to successfully execute this script.';
        SET NOEXEC ON;
    END


GO
USE [$(DatabaseName)];


GO

IF (SELECT OBJECT_ID('tempdb..#tmpErrors')) IS NOT NULL DROP TABLE #tmpErrors
GO
CREATE TABLE #tmpErrors (Error int)
GO
SET XACT_ABORT ON
GO
SET TRANSACTION ISOLATION LEVEL READ COMMITTED
GO
BEGIN TRANSACTION
GO
PRINT N'Dropping fk_RoleId...';


GO
ALTER TABLE [dbo].[webpages_UsersInRoles] DROP CONSTRAINT [fk_RoleId];


GO
IF @@ERROR <> 0
   AND @@TRANCOUNT > 0
    BEGIN
        ROLLBACK;
    END

IF @@TRANCOUNT = 0
    BEGIN
        INSERT  INTO #tmpErrors (Error)
        VALUES                 (1);
        BEGIN TRANSACTION;
    END


GO
PRINT N'Dropping [dbo].[webpages_Roles]...';


GO
DROP TABLE [dbo].[webpages_Roles];


GO
IF @@ERROR <> 0
   AND @@TRANCOUNT > 0
    BEGIN
        ROLLBACK;
    END

IF @@TRANCOUNT = 0
    BEGIN
        INSERT  INTO #tmpErrors (Error)
        VALUES                 (1);
        BEGIN TRANSACTION;
    END


GO

IF EXISTS (SELECT * FROM #tmpErrors) ROLLBACK TRANSACTION
GO
IF @@TRANCOUNT>0 BEGIN
PRINT N'The transacted portion of the database update succeeded.'
COMMIT TRANSACTION
END
ELSE PRINT N'The transacted portion of the database update failed.'
GO
DROP TABLE #tmpErrors
GO
PRINT N'Update complete.';


GO
/*----------------------------------------------------------------------------------------------------------------------*/
/*
Deployment script for RandomDBdev

This code was generated by a tool.
Changes to this file may cause incorrect behavior and will be lost if
the code is regenerated.
*/

GO
SET ANSI_NULLS, ANSI_PADDING, ANSI_WARNINGS, ARITHABORT, CONCAT_NULL_YIELDS_NULL, QUOTED_IDENTIFIER ON;

SET NUMERIC_ROUNDABORT OFF;


GO
:setvar DatabaseName "RandomDBdev"
:setvar DefaultFilePrefix "RandomDBdev"
:setvar DefaultDataPath "C:\Users\arandomuser\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\v11.0\"
:setvar DefaultLogPath "C:\Users\arandomuser\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\v11.0\"

GO
:on error exit
GO
/*
Detect SQLCMD mode and disable script execution if SQLCMD mode is not supported.
To re-enable the script after enabling SQLCMD mode, execute the following:
SET NOEXEC OFF; 
*/
:setvar __IsSqlCmdEnabled "True"
GO
IF N'$(__IsSqlCmdEnabled)' NOT LIKE N'True'
    BEGIN
        PRINT N'SQLCMD mode must be enabled to successfully execute this script.';
        SET NOEXEC ON;
    END


GO
USE [$(DatabaseName)];


GO

IF (SELECT OBJECT_ID('tempdb..#tmpErrors')) IS NOT NULL DROP TABLE #tmpErrors
GO
CREATE TABLE #tmpErrors (Error int)
GO
SET XACT_ABORT ON
GO
SET TRANSACTION ISOLATION LEVEL READ COMMITTED
GO
BEGIN TRANSACTION
GO
PRINT N'Dropping [dbo].[webpages_UsersInRoles]...';


GO
DROP TABLE [dbo].[webpages_UsersInRoles];


GO
IF @@ERROR <> 0
   AND @@TRANCOUNT > 0
    BEGIN
        ROLLBACK;
    END

IF @@TRANCOUNT = 0
    BEGIN
        INSERT  INTO #tmpErrors (Error)
        VALUES                 (1);
        BEGIN TRANSACTION;
    END


GO

IF EXISTS (SELECT * FROM #tmpErrors) ROLLBACK TRANSACTION
GO
IF @@TRANCOUNT>0 BEGIN
PRINT N'The transacted portion of the database update succeeded.'
COMMIT TRANSACTION
END
ELSE PRINT N'The transacted portion of the database update failed.'
GO
DROP TABLE #tmpErrors
GO
PRINT N'Update complete.';


GO

/*----------------------------------------------------------------------------------------------------------------------*/

我對存儲過程沒有太多的經驗，可以提供任何幫助或幫助。 只需嘗試使重復的任務容易一些即可。

Answer 1

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE DropTables
AS
BEGIN
    DROP TABLE Table1
    DROP TABLE Table2
    DROP TABLE Table3
    DROP TABLE Table4
END
GO

用EXEC DropTables調用它