GROUP BY Clause Does Not Guarantee a Sort Without ORDER BY Clause in 10g and Above
Last updated on JANUARY 25, 2018
Applies to:Oracle Database - Enterprise Edition - Version 10.1.0.2 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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