ORA-07445 Errors Seen in Alert log with Various First Arguments Using Database Links between 11.2.0.4/12.1.0.1 and Earlier Versions
(Doc ID 2007574.1)
Last updated on MARCH 12, 2021
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.3 to 11.2.0.3 [Release 11.2]Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
Symptoms
- Alert log contains one or more ORA-07445 errors with [ kkegbyBasic] / [qsmmixGetIdxKeyStats] / [qsmmixGenFakeIdxStats] / [k2udio] / [ddfdsii] / [kghalp] / [pfrdglob] as the first Module.
- For example:
- Database connected to another database via a dblink
- Database links are in use between different Oracle versions
- One of the databases involved is at version 11.2.0.4 or 12.1.0.1
- At least one other database involved is at version 11.2.0.3 or lower
Changes
created a dblink to another database
or
upgraded / patched one of the databases connected via a dblink
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |