回复：是这样的

来源: dbdb 于 2004-01-13 08:35:00 [] [旧帖] [给我悄悄话] 阅读数 : (258 bytes)
本帖于 2004-02-06 15:24:48 时间, 由普通用户 old-cotton 编辑
回答: Advanced SQL Help Please. 由 TellMe123 于 2004-01-12 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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