Oracle MERGE 使用 SELECT 与不使用 SELECT [关闭]

Question

关闭。 此问题不可重现或由拼写错误引起。 它目前不接受答案。

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昨天关门。

改进这个问题

--- 这将返回错误“ORA-30926：无法在源表中获得一组稳定的行”

MERGE INTO PS_WORK_WK W 
     USING PS_STAGING S  
        ON (   S.ID = W.ID 
            AND S.DATE = W.DATE 
            AND (   (SUBSTR (C.ACCOUNT, 4, 3) = '999') 
                 OR (SUBSTR (C.ACCOUNT, 5, 2) = '98')) 
WHEN MATCHED 
THEN 
   UPDATE SET W.AMOUNT_ALL =  
 W.AMOUNT_ALL - C.AMOUNT WHERE  SUBSTR (W.ACCOUNT, 1, 2) = '51' 
       AND (    (SUBSTR (W.ACCOUNT, 4, 3) <> '999') 
            AND (SUBSTR (W.ACCOUNT, 5, 2) <> '98')); 

--- 当我尝试使用稍微不同的格式时，使用 SELECT（实际上是 SELECT DISTINCT）它无法识别第二个表 PS_STAGING 中的列（返回错误“S.ID 无效标识符”）

MERGE INTO PS_WORK_WK W 
     USING (SELECT DISTINCT ID FROM PS_STAGING) S  
        ON (   S.ID = W.ID 
            AND S.DATE = W.DATE 
            AND (   (SUBSTR (C.ACCOUNT, 4, 3) = '999') 
                 OR (SUBSTR (C.ACCOUNT, 5, 2) = '98')) 
WHEN MATCHED 
THEN 
   UPDATE SET W.AMOUNT_ALL =  
 W.AMOUNT_ALL - C.AMOUNT WHERE  SUBSTR (W.ACCOUNT, 1, 2) = '51' 
       AND (    (SUBSTR (W.ACCOUNT, 4, 3) <> '999') 
            AND (SUBSTR (W.ACCOUNT, 5, 2) <> '98'));