ORA-07445 [Opidsa()] During a Select Statement
(Doc ID 457454.1)
Last updated on OCTOBER 02, 2019
Applies to:Oracle Database - Enterprise Edition - Version 10.1.0.2 to 10.1.0.5 [Release 10.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
This problem can occur on any platform.
1. The following error is generated during a SELECT statement:
ORA-07445: exception encountered: core dump [opidsa()+2849] [SIGSEGV] [Address not mapped to object] [0xC000000080000000]  
2. The call stack will contain following functions: ksedmp ssexhd opidsa kpodny kpoal8
3. The error may not reproduce when issuing the same SQL again.
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