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12c: ORA-07445: Exception Encountered: Core Dump [msqcol()+1698] for SQL Tuning Advisor (Doc ID 2020916.1)

Last updated on FEBRUARY 20, 2019

Applies to:

Oracle Database - Standard Edition - Version and later
Oracle Database - Enterprise Edition - Version to [Release 12.1]
Oracle Database Cloud Schema Service - Version N/A 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.


Alert log reports next error during automatic sql tuning advisor run:

Begin automatic SQL Tuning Advisor run for special tuning task "SYS_AUTO_SQL_TUNING_TASK"
ORA-07445: exception encountered: core dump [msqcol()+1340] [SIGSEGV] [ADDR:0x10] [PC:0x279C19C] [Address not mapped to object] []

The trace file shows characteristics like:

----- Current SQL Statement for this session (sql_id=bg3b1a8yb4xc8) -----
/* SQL Analyze(225,1) / Select * from <table_name>

----- PL/SQL Stack -----
----- PL/SQL Call Stack -----
 object      line  object
 handle    number  name
0x10ef426b0     12818  package body SYS.DBMS_SQLTUNE_INTERNAL
0xcaa91d20         7  SYS.WRI$_ADV_SQLTUNE
0x87b15490       602  package body SYS.PRVT_ADVISOR
0x87b15490      2679  package body SYS.PRVT_ADVISOR
0x10b419bf8       241  package body SYS.DBMS_ADVISOR
0x1094ceb68       937  package body SYS.DBMS_SQLTUNE
0x107e58110        19  anonymous block

----- Call Stack Trace -----
... msqcol msqopnws msqsellst msqsel qksdsAppendFroElem qksdsEInitCtx kkoatVerifyEst kkeAdjJoinPrefCard kkejcd kkojnp kkocnp kkooqb kkoqbc apakkoqb apaqbdDescendents





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