如何使用sql事务select select case语句

我有一个crm应用程序。我发现在我的数据库实施查询，而工作人员用户发布查询回复我不得不插入新的查询ans到一张桌子和同一时间修改另一个表数据。我应用逻辑以及我代表我存储的过程。但在这个过程中发生错误。如何使用sql事务select select case语句

set ANSI_NULLS ON 
set QUOTED_IDENTIFIER ON 
GO 
ALTER PROCEDURE [dbo].[InquiryPostReply] 
(
    @Inquiry_id VARCHAR(50), 
    @Priority_type VARCHAR(25), 
    @Status_name VARCHAR(50), 
    @Inquiry_Content VARCHAR(1024), 
    @NewId VARCHAR(50) OUT 
) 
AS 
BEGIN 
SET NOCOUNT ON; 
declare @var1 int 
declare @var2 int 
declare @uniqueRef char(14) 
set @uniqueRef = dbo.UniqueRefNum(rand(), rand(), rand(), rand()) 
set @var1= (SELECT [Id] FROM [OmStocks].[dbo].[tbl_Status_master] WHERE ([email protected]_name)) 
set @var2= (SELECT [Id] FROM [OmStocks].[dbo].[tbl_Priority_master] WHERE ([email protected]_type)) 
    SELECT 
     CASE @Status_name 
     WHEN 'Open' THEN 
      BEGIN TRAN; 
      BEGIN TRY 
       INSERT INTO [OmStocks].[dbo].[tbl_Inquiry_master] 
       ([Id],[Inquiry_id],[Priority_id],[Status_id],[Inquiry_Content],[TimeStamp]) 
       VALUES 
       (@uniqueRef,@Inquiry_id,@var2,@var1,@Inquiry_Content,CONVERT(DATETIME,GETDATE(), 101)) 
       UPDATE [OmStocks].[dbo].[tbl_Inquiry_History] 
        SET [Priority_id] = @var2,[Status_id] = @var1,[IsDisplay] = 1,[IsReplied] = 1,[TimeStamp] = CONVERT(DATETIME,GETDATE(), 101) 
       WHERE ([email protected]_id) 
      COMMIT TRAN; 
      END TRY; 
     WHEN 'Close' THEN 
      BEGIN TRAN; 
      BEGIN TRY 
       INSERT INTO [OmStocks].[dbo].[tbl_Inquiry_master] 
       ([Id],[Inquiry_id],[Priority_id],[Status_id],[Inquiry_Content],[TimeStamp]) 
       VALUES 
       (@uniqueRef,@Inquiry_id,@var2,@var1,@Inquiry_Content,CONVERT(DATETIME,GETDATE(), 101)) 
       UPDATE [OmStocks].[dbo].[tbl_Inquiry_History] 
        SET [Priority_id] = @var2,[Status_id] = @var1,[IsDisplay] = 0,[IsReplied] = 1,[TimeStamp] = CONVERT(DATETIME,GETDATE(), 101),[Activity_expire_time] = CONVERT(DATETIME,GETDATE(), 101) 
       WHERE ([email protected]_id) 
      COMMIT TRAN; 
      END TRY; 
    END 
    SET @NewId = @uniqueRef 
END

出错，如：

Msg 156, Level 15, State 1, Procedure InquiryPostReply, Line 21 
Incorrect syntax near the keyword 'BEGIN'. 
Msg 102, Level 15, State 1, Procedure InquiryPostReply, Line 31 
Incorrect syntax near ';'. 
Msg 102, Level 15, State 1, Procedure InquiryPostReply, Line 43 
Incorrect syntax near ';'. 
Msg 102, Level 15, State 1, Procedure InquiryPostReply, Line 46 
Incorrect syntax near 'END'.

请帮我...

来源

2013-10-24 Shalin Gajjar

看起来你试图在你的SQL中使用VB中的SELECT CASE。这些关键字存在，但他们不做同样的事情。 – David

不能使用CASE这一点。 CASE是一个返回单个结果的表达式，而不是可用于流程控制的语句。我明白CASE在某些其他语言中被这样使用，但在T-SQL中是不可能的。

IF @Status_name = 'Open' THEN 
BEGIN 
    -- do stuff 
END 

IF @Status_name = 'Close' THEN 
BEGIN 
    -- do other stuff 
END

来源

2013-10-24 13:22:04

感谢它的作品.. –

如何使用sql事务select select case语句

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