如何使用聚結在，在那裏部分

Question

如何在這段代碼中使用合併命令下面的代碼

PIECE_DETAIL in coalesce(PIECE_DETAIL, (SELECT B.MODEL_ID FROM PIECES_DETAILS B WHERE PIECE_ID = @PIECE_ID AND B.BRAND_ID=COALESCE(B.BRAND_ID,@BRAND_ID)) 

SELECT DISTINCT 
      [dbo].[test2](A.PIECE_DETAIL ) TOTAL_QUANTITY, 
      PIECE_LATIN = (SELECT PIECE_LATIN FROM PIECES WHERE PIECE_ID = 
        (SELECT PIECE_ID FROM PIECES_DETAILS WHERE MODEL_ID = A.PIECE_DETAIL)), 
      BRAND_LATIN = (SELECT BRAND_LATIN FROM BRANDS WHERE BRAND_ID = 
        (SELECT BRAND_ID FROM PIECES_DETAILS WHERE MODEL_ID = A.PIECE_DETAIL)), 
      BRAND_ID = (SELECT BRAND_ID FROM PIECES_DETAILS WHERE MODEL_ID = A.PIECE_DETAIL), 
      PIECE_ID = (SELECT PIECE_ID FROM PIECES_DETAILS WHERE MODEL_ID = A.PIECE_DETAIL),   
      MODEL_NAME = (SELECT MODEL_NAME FROM PIECES_DETAILS WHERE MODEL_ID = A.PIECE_DETAIL), 
      PIECE_DETAIL MODEL_ID, 
      A.PIECE_STATUS , 
      PIECE_STATUS_Name = (SELECT STATUS_Name FROM PIECE_STATUS WHERE STATUS_ID = A.PIECE_STATUS) , 
      A.PIECE_DETAIL 
     FROM DOCUMENT_ITEMS A 
     WHERE 
     PIECE_STATUS = 1 and 
     DOC_SEQ IN (SELECT DOC_SEQ FROM DOCUMENT_HEADER WHERE DOC_TYPE IN (1,3)) 
     AND PIECE_DETAIL in coalesce(PIECE_DETAIL, (SELECT B.MODEL_ID FROM PIECES_DETAILS B WHERE PIECE_ID = @PIECE_ID AND B.BRAND_ID=COALESCE(B.BRAND_ID,@BRAND_ID)) 
     AND [DBO].[GET_WAREHOUSE_QUANTITIES_SPECIAL_ID_EXIST](A.PIECE_DETAIL ,A.SPECIAL_ID)> 0 
     GROUP BY PIECE_DETAIL ,SPECIAL_ID ,PIECE_STATUS 

感謝所有

Answer 1

像這樣的事情再：

WHERE PIECE_DETAIL IN 
    (
     SELECT 
      coalesce(PIECE_DETAIL,B.MODEL_ID) 
     FROM 
      PIECES_DETAILS B 
     WHERE 
      PIECE_ID = @PIECE_ID 
      AND B.BRAND_ID=COALESCE(B.BRAND_ID,@BRAND_ID) 
    ) 

編輯

也許是這樣的：

WHERE 
    (
     (
      FROM_DATE IS NULL AND TO_DATE IS NULL 
     ) 
     OR 
     (
      BUY_DOC_DATE BETWEEN FROM_DATE AND TO_DATE 
     ) 
    )