GROUP BY Clause Does Not Guarantee a Sort Without ORDER BY Clause in 10g and Above
(Doc ID 345048.1)
Last updated on DECEMBER 14, 2020
Applies to:Oracle Database - Enterprise Edition - Version 10.1.0.2 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
A query with a GROUP BY clause returns unsorted data, whereas previously the data was sorted, or the data was expected to be sorted, based upon previous experience.
Upgraded Database to version 10G.
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