When using Oracle 12.1.0.1, left outer joins in reports may return incorrect results
Valid from Pega Version 7.1.1
When using Pega 7 with Oracle 12.1.0.1 , reports that use left outer joins may return incorrect results.
This is an Oracle known issue. To resolve this behavior, upgrade to Oracle 12.1.0.2, apply the Oracle patch 16726638 by requesting it directly from Oracle, or, for Microsoft Windows installations, apply Windows Bundle patch 12.1.0.1.15 or later.
For more information in this behavior, see: https://support.oracle.com/epmos/faces/DocumentDisplay?_afrLoop=392085808201943&id=1957943.1