Wrong Result Using The PERCENTILE_DISC Function Whose Order By Clause Uses A VARCHAR2 Column (Doc ID 2105208.1)

Last updated on FEBRUARY 17, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.4 and later
Information in this document applies to any platform.

Symptoms

when trying to use the PERCENTILE_DISC function in its aggregate form, but the result shows "?" if  we use a VARCHAR2 column for the order by clause inside the WITHIN GROUP clause.
Using a NUMBER column instead of a VARCHAR2 column for the order by clause provides the correct result.

 

Cause

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