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AUTO STATS Job Fails with ORA-30926: unable to get a stable set of rows in the source tables (Doc ID 2734227.1)

Last updated on MARCH 04, 2021

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later
Information in this document applies to any platform.

Symptoms

Auto STATS Gathering Job failed with  ORA-30926

PDBA(5):Errors in file /u01/app/oracle/diag/rdbms/moe/ABCD/trace/ABCD1_j000_211316.trc:
ORA-12012: error on auto execute of job "SYS"."ORA$AT_OS_OPT_SY_11111"
ORA-30926: unable to get a stable set of rows in the source tables
ORA-06512: at "SYS.DBMS_STATS", line 47214
ORA-06512: at "SYS.DBMS_STATS", line 43479
ORA-06512: at "SYS.DBMS_STATS_INTERNAL", line 191
ORA-06512: at "SYS.DBMS_STATS_INTERNAL", line 10799
ORA-06512: at "SYS.DBMS_STATS", line 43466
ORA-06512: at "SYS.DBMS_STATS", line 47182


Error-stack for ORA-30926 revealed the Failing SQL Statement ie:

dbkedDefDump(): Starting a non-incident diagnostic dump (flags=0x0, level=3, mask=0x0)
----- Error Stack Dump -----
ORA-30926: unable to get a stable set of rows in the source tables
----- Current SQL Statement for this session (sql_id=dqucusk8avvuh) -----
delete /* KSXM:CLEAN_COL_USAGE *//*+ dynamic_sampling(4) */    from sys.col_usage$ c   where ((timestamp < sysdate - 367)          or not exists             (select /*+ unnest */ 1 from sys.obj$ o where o.obj# = c.obj#))     and c.obj# < :1  and rownum <=  :2
----- PL/SQL Stack -----
----- PL/SQL Call Stack -----
 object      line  object
 handle    number  name
0x188f72d410       191  package body SYS.DBMS_STATS_INTERNAL.PURGE_OLD_STATS_CALLOUT
0x188f72d410     10799  package body SYS.DBMS_STATS_INTERNAL.PURGE_STATS_AUX
0x18bcdaa2e8     43466  package body SYS.DBMS_STATS.PURGE_STATS_AUX
0x18bcdaa2e8     47182  package body SYS.DBMS_STATS.GATHER_DATABASE_STATS_JOB_PROC

 

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution


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