SQL Server錯誤：（;）MERGE語句必須用分號來終止

Question

一個SQL Server上，我有以下2014數據庫：

CREATE TABLE dbo.AssetGroupClassification ( 
    ClassificationId int IDENTITY(1,1) NOT NULL, 
    ClassificationName varchar(25) NOT NULL, 
    CONSTRAINT [PK_AssetGroupClassification.ClassificationId] PRIMARY KEY CLUSTERED(ClassificationId) 
) 
GO 
CREATE TYPE dbo.AssetGroupClassUDT AS TABLE (
    ClassificationId int IDENTITY (1, 1) NOT NULL, 
    ClassificationName varchar(25) NOT NULL 
    ) 
GO 

我試圖創建下面的存儲過程：

CREATE PROCEDURE dbo.AssetGroupClassUpsert 
     @assetGrpClassData AssetGroupClassUDT READONLY 
AS 
BEGIN 
    SET XACT_ABORT, NOCOUNT ON 

    BEGIN TRY 
     BEGIN TRANSACTION agcUpsertTran 

     MERGE AssetGroupClassification AS t 
     USING @assetGrpClassData AS src 
     ON t.ClassificationId = src.ClassificationId 
     WHEN MATCHED THEN 
      UPDATE SET ClassificationName = src.ClassificationName 
     WHEN NOT MATCHED THEN 
      INSERT (ClassificationName) 
      VALUES (src.ClassificationName); 

     COMMIT TRANSACTION agcUpsertTran 
    END TRY 
    BEGIN CATCH 
     IF @@trancount > 0 ROLLBACK TRANSACTION 
     DECLARE @errMsg nvarchar(4000) = ERROR_MESSAGE() 
     RAISERROR (@errMsg, 16, 1) 

     RETURN 99 
    END CATCH 
END 
GO 

不過，我收到錯誤：

A MERGE statement must be terminated by a semi-colon (;). 

我缺少什麼？分號顯然存在，所以必須有別的東西。

Answer 1

我在Visual Studio 2013中的服務器資源管理器中運行了相同的腳本，並且創建了存儲的proc時沒有任何問題。我認爲這個問題與我正在使用的IDE Aqua Data Studio 15.0.11有關。

Answer 2

請看看下面的語法從Simple-talk

MERGE BookInventory bi 

USING BookOrder bo 

ON bi.TitleID = bo.TitleID 

WHEN MATCHED AND 

    bi.Quantity + bo.Quantity = 0 THEN 

    DELETE 

WHEN MATCHED THEN 

    UPDATE 

    SET bi.Quantity = bi.Quantity + bo.Quantity 

WHEN NOT MATCHED BY TARGET THEN 

    INSERT (TitleID, Title, Quantity) 

    VALUES (bo.TitleID, bo.Title,bo.Quantity) 

WHEN NOT MATCHED BY SOURCE 

    AND bi.Quantity = 0 THEN 

    DELETE; 

我想，你缺少，

WHEN NOT MATCHED BY TARGET THEN 

Answer 3

嚴格地說所有SQL語句應該用分號結束。即

SELECT 
    Example 
FROM 
    Test1 
; 

SELECT 
    Example 
FROM 
    Test2 
; 

在實際中，SQL Server僅對某些查詢類型強制執行此操作。 CTE和MERGE之前的聲明就是一個例子。

從MSDN：

; Transact-SQL statement terminator.Although the semicolon is not required for most statements in this version of SQL Server, it will be required in a future version.

當然，這不利於該錯誤消息告訴您終止合併，但沒有提到還需要前面的查詢。嘗試：

BEGIN TRANSACTION agcUpsertTran; 

    MERGE AssetGroupClassification AS t 
    .... 
    ;