我在下面的查询中使用了两种情况来获取 daction 和 ApprovalType 的结果。在 Oracle SQL 中运行以下查询时,会分别为 daction 和 ApprovalType 列创建两个新的临时列作为 daction_1 和 ApprovalType _1。现在,我想在我的 IDOC 代码中使用这些关键字,但由于创建了临时列,我无法使用它们。如何解决这个问题?
SELECT WH.dActionDate,
WH.xWF_SendTo,
WH.dAction,
ATY.ApprovalType,
WH.xWorkflowComments,
CASE
WHEN NVL(ApprovalType,'') IS NULL
THEN xPurposeForRejection
ELSE ApprovalType
END AS ApprovalType,
CASE
WHEN NVL(dAction,'') ='SendTo'
AND NVL(ApprovalType,'') IS NOT NULL
OR NVL(dAction,'') ='Approve'
THEN 'Approve'
ELSE 'Reject'
END AS dAction
FROM WorkflowHistory WH,
Reason Re,
ApprovalType ATY
WHERE UPPER(dDocName) = UPPER('D_1239178')
AND xPurposeForSubmission = Re.ReasonID(+)
AND xDocApproval = ATY.ApprovalTypeID(+)
AND (dAction IN('Reject','Approve')
OR (dAction ='SendTo'
AND ApprovalType IS NOT NULL))
AND ROWNUM <= 5
ORDER BY dActionDate DESC,
dActionMillis