回複：是這樣的

來源: 於 2004-01-13 08:35:00 [舊帖] [給我悄悄話] 本文已被閱讀：次

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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