Perceived 'Wrong Results' Using ROWNUM with DISTINCT or ORDER BY
(Doc ID 1461173.1)
Last updated on MARCH 03, 2022
Applies to:
Oracle Database - Personal Edition - Version 8.0.3.0 and laterOracle Database - Enterprise Edition - Version 8.0.3.0 and later
Oracle Database - Standard Edition - Version 8.0.3.0 and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
Symptoms
A select statement using 'DISTINCT' or 'GROUP BY' and a 'ROWNUM' predicate is returning fewer rows than expected.
For example, the following query might return only 10 rows even when there are at least 100 distinct values in the table:
Cause
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In this Document
Symptoms |
Cause |
Solution |
References |