GROUP BY Clause Does Not Guarantee a Sort Without ORDER BY Clause in 10g and Above

(Doc ID 345048.1)

Last updated on JANUARY 25, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 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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