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ORA-12008: error in materialized view or zonemap refresh path ORA-01555: snapshot too old: rollback

in Database Administration (MOSC) 7 commentsAnswered

materialized view with Oracle 12c master table, 19c slave table, got following error in alert.log file. The query is pretty simple and quick. We got the error more than half the times. I tried increasing undo_retention but changed nothing, undo tablespace is auto extend. Thank you!

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ORA-12012: error on auto execute of job "P_DAI_RECON_M"."QLIK_REFRESH"

ORA-12008: error in materialized view or zonemap refresh path

ORA-06512: at "SYS.DBMS_SNAPSHOT_KKXRCA", line 2952

ORA-06512: at "SYS.DBMS_SNAPSHOT_KKXRCA", line 2370

ORA-01555: snapshot too old: rollback segment number 5 with name "_SYSSMU5_2101348960$" too small

ORA-02063: preceding line from DL_PRIDEDAI

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