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ORA-07445[msqtnm()+54] From Explain Plan Statement Over Database Link (Doc ID 2980023.1)

Last updated on NOVEMBER 26, 2023

Applies to:

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


Explain plan statement may raise ORA-7445[msqtnm] under below condition:

- explain plan statement
- There are 2 FULL OUTER JOINs
- DBLINK is used

An example statement is like below.

ORA-7445 error is recorded in the alert log:

ORA-07445: exception encountered: core dump [msqtnm()+54] [SIGSEGV] [ADDR:0x68] [PC:0x4536966] [Address not mapped to object] []




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