回複:是這樣的

來源: dbdb 2004-01-13 08:35:00 [] [舊帖] [給我悄悄話] 本文已被閱讀: 次 (258 bytes)
本文內容已被 [ dbdb ] 在 2004-02-06 15:24:48 編輯過。如有問題,請報告版主或論壇管理刪除.
回答: Advanced SQL Help Please.TellMe1232004-01-12 10:32:00
Row_Num is supported in Oracle. But most advanced RDBMS no longer support such feature to user. They still existing internally, but we can not retrieve them.

Some times, the pseudo-column, as my last post, is needed to add such feature to application.



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