o, lsf沒有問題,是main query的兩個table alias. 問題出在

來源: 布衣之才 2012-08-08 20:09:14 [] [博客] [舊帖] [給我悄悄話] 本文已被閱讀: 次 (428 bytes)
回答: 你所指代的 o and lsf 分別在這兩個JJGL2012-08-08 16:50:20

documentation_level_desc in the first sub query has been aliased  as cmdm_doc_type, and  SPECIAL_FEATURE_CODE in the second sub query has been aliased as Harp_CODE. Therefore in the main where clause the original field names can not be used, instead their alias names should be used.

請您先登陸,再發跟帖!

發現Adblock插件

如要繼續瀏覽
請支持本站 請務必在本站關閉/移除任何Adblock

關閉Adblock後 請點擊

請參考如何關閉Adblock/Adblock plus

安裝Adblock plus用戶請點擊瀏覽器圖標
選擇“Disable on www.wenxuecity.com”

安裝Adblock用戶請點擊圖標
選擇“don't run on pages on this domain”