1

エラーを表示しているこのクエリがありORA-00979:not a GROUP BY expressionます。

私はSQLのプロではないので、何が問題なのかヒントを教えてください。

SELECT *
  FROM (SELECT a.*, ROWNUM r___
          FROM (SELECT DISTINCT "SMTAPP"."XF_MASTER"."ID" AS "XfMasterEntityId",
                                "SMTAPP"."XP_MASTER_DETAIL"."WIFENAME" AS "XpMasterDetailEntityWifename",
                                "SMTAPP"."XP_MASTER_DETAIL"."COUNT" AS "XpMasterDetailEntityCount",
                                MAX ("SMTAPP"."XP_MASTER_DETAIL"."COUNT") AS "XpMasterDetailEntityCountMax"
                           FROM ("SMTAPP"."XF_MASTER" LEFT JOIN "SMTAPP"."XP_MASTER_DETAIL"
                                ON "SMTAPP"."XF_MASTER"."ID" =  "SMTAPP"."XP_MASTER_DETAIL"."XF_MASTER_ID")
                       GROUP BY "SMTAPP"."XP_MASTER_DETAIL"."COUNT"
                       ORDER BY "SMTAPP"."XF_MASTER"."ID" ASC) a
         WHERE ROWNUM < '11')
 WHERE r___ >= '1'
4

4 に答える 4

3

を使用する場合GROUP BY、選択するすべての列は、集計関数を使用して集計するか、GROUP BY句に含める必要があります。そうしないと、その列のアイテムのリストが表示されますが、これは単一の値ではありません。

したがって、これを試してください（既存のGROUP BYものをこれに置き換えます）：

GROUP BY "SMTAPP"."XF_MASTER"."ID", 
  "SMTAPP"."XP_MASTER_DETAIL"."WIFENAME", 
  "SMTAPP"."XP_MASTER_DETAIL"."COUNT"
于 2010-10-14T14:09:03.857 に答える
2

から他の列SELECTをGROUP BY:IDに追加してみてくださいWIFENAME

于 2010-10-14T14:07:50.833 に答える
1

In the inner most Query 

SELECT DISTINCT 
"SMTAPP"."XF_MASTER"."ID" AS "XfMasterEntityId",
"SMTAPP"."XP_MASTER_DETAIL"."WIFENAME" AS "XpMasterDetailEntityWifename",
"SMTAPP"."XP_MASTER_DETAIL"."COUNT" AS "XpMasterDetailEntityCount",
MAX ("SMTAPP"."XP_MASTER_DETAIL"."COUNT") AS "XpMasterDetailEntityCountMax"

FROM ("SMTAPP"."XF_MASTER" LEFT JOIN "SMTAPP"."XP_MASTER_DETAIL"
ON "SMTAPP"."XF_MASTER"."ID" =  "SMTAPP"."XP_MASTER_DETAIL"."XF_MASTER_ID")
GROUP BY "SMTAPP"."XP_MASTER_DETAIL"."COUNT"
ORDER BY "SMTAPP"."XF_MASTER"."ID" ASC

you have columns in the SELECT i.e. 

"SMTAPP"."XF_MASTER"."ID" AS "XfMasterEntityId",

AND 

"SMTAPP"."XP_MASTER_DETAIL"."WIFENAME" AS "XpMasterDetailEntityWifename"

which are NOT part of the GROUP BY "SMTAPP"."XP_MASTER_DETAIL"."COUNT" and that is not allowed.

You can only have columns in the SELECT that are part of the Group By or are aggregated using the Aggregate Functions like MAX / AVG etc

于 2010-10-14T14:10:21.243 に答える
1

@eumiro の意味は 

   SELECT *
      FROM (SELECT a.*, ROWNUM r___
              FROM (SELECT DISTINCT "SMTAPP"."XF_MASTER"."ID" AS "XfMasterEntityId",
                                    "SMTAPP"."XP_MASTER_DETAIL"."WIFENAME" AS "XpMasterDetailEntityWifename",
                                    "SMTAPP"."XP_MASTER_DETAIL"."COUNT" AS "XpMasterDetailEntityCount",
                                    MAX ("SMTAPP"."XP_MASTER_DETAIL"."COUNT") AS "XpMasterDetailEntityCountMax"
                               FROM ("SMTAPP"."XF_MASTER" LEFT JOIN "SMTAPP"."XP_MASTER_DETAIL"
                                    ON "SMTAPP"."XF_MASTER"."ID" =  "SMTAPP"."XP_MASTER_DETAIL"."XF_MASTER_ID")
                           GROUP BY "SMTAPP"."XF_MASTER"."ID", "SMTAPP"."XP_MASTER_DETAIL"."WIFENAME", "SMTAPP"."XP_MASTER_DETAIL"."COUNT"
                           ORDER BY "SMTAPP"."XF_MASTER"."ID" ASC) a
             WHERE ROWNUM < '11')
     WHERE r___ >= '1'
于 2010-10-14T14:13:21.927 に答える