SQL合併中的打印語句

Question

我被要求在SQL合併中包含一些調試PRINT語句，這是我新來的。我被告知OUTPUT並不令人滿意。

MERGE Production.UnitMeasure AS target 
    USING (SELECT @UnitMeasureCode, @Name) AS source (UnitMeasureCode, Name) 
    ON (target.UnitMeasureCode = source.UnitMeasureCode) 
    WHEN MATCHED THEN 
     UPDATE SET Name = source.Name 
     PRINT "Updated" 
    WHEN NOT MATCHED THEN 
     INSERT (UnitMeasureCode, Name) 
     VALUES (source.UnitMeasureCode, source.Name) 
     PRINT "Inserted" 

這不起作用，因爲它顯示每個條件塊應該包含單個SQL命令。

有沒有簡單的方法來實現我所追求的？

Answer 1

IF EXISTS (SELECT 1 FROM Production.UnitMeasure WHERE UnitMeasureCode = @UnitMeasureCode) 
    BEGIN 
    UPDATE Production.UnitMeasure 
     SET Name = @Name 
    WHERE UnitMeasureCode = @UnitMeasureCode 
    PRINT 'Updated' 
    END 
ELSE 
    BEGIN 
    INSERT Production.UnitMeasure (UnitMeasureCode, Name) 
    VALUES (@UnitMeasureCode, @Name) 
    PRINT 'Inserted' 
    END 

或另一種作法可能是

 UPDATE Production.UnitMeasure 
     SET Name = @Name 
    WHERE UnitMeasureCode = @UnitMeasureCode 

IF (@@ROWCOUNT <> 0) 
    BEGIN 
    PRINT 'Updated' 
    END 
ELSE 
    BEGIN 
    INSERT Production.UnitMeasure (UnitMeasureCode, Name) 
    VALUES (@UnitMeasureCode, @Name) 
    PRINT 'Inserted' 
    END