這個SQL查詢有什麼問題？

Question

以下查詢返回「ORA-00904錯誤：SATIS：無效的標識符」。當我刪除行HAVING satis > 0，它的工作。我該怎麼辦？

SELECT donem, bolge_adi, sehir_tasra "1=Ş, 2=T", 
     COUNT(DISTINCT mekankodu) "M.SAYISI", 
     SUM(b2b_dagitim + b2b_transfer - b2b_iade) satis 
FROM mps_view2 
WHERE donem IN ('200612','200712','200812','200912') 
AND (ob IS NOT NULL OR b2b_ob IS NOT NULL) 
GROUP BY donem, bolge_adi, sehir_tasra 
HAVING satis > 0 
ORDER BY donem, bolge_adi, sehir_tasra 

Answer 1

不能使用條件別名（有查詢的部分）

試試這個：

SELECT donem, bolge_adi, sehir_tasra "1=Ş, 2=T", 
    COUNT(DISTINCT mekankodu) "M.SAYISI", 
    SUM(b2b_dagitim + b2b_transfer - b2b_iade) satis 
FROM mps_view2 
WHERE donem IN ('200612','200712','200812','200912') 
     AND (ob IS NOT NULL OR b2b_ob IS NOT NULL) 
GROUP BY donem, bolge_adi, sehir_tasra 
HAVING SUM(b2b_dagitim + b2b_transfer - b2b_iade) > 0 
ORDER BY donem, bolge_adi, sehir_tasra 

Answer 2

您需要將其更改爲

SELECT donem, bolge_adi, sehir_tasra "1=Ş, 2=T", 
     COUNT(DISTINCT mekankodu) "M.SAYISI", 
     SUM(b2b_dagitim + b2b_transfer - b2b_iade) satis 
FROM mps_view2 
WHERE donem IN ('200612','200712','200812','200912') 
AND (ob IS NOT NULL OR b2b_ob IS NOT NULL) 
GROUP BY donem, bolge_adi, sehir_tasra 
HAVING SUM(b2b_dagitim + b2b_transfer - b2b_iade) > 0 
ORDER BY donem, bolge_adi, sehir_tasra 

HAVING子句中不能使用的別名。

Answer 3

從這裏：

http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/statements_10002.htm

The alias can be used in the order_by_clause but not other clauses in the query.