- ORA-04020: deadlock detected while trying to lock object SYS.SCHEDULER$_EVENT_QUEUE
ORA-06512: at "SYS.DBMS_ISCHED", line 7761
ORA-06512: at "SYS.DBMS_SCHEDULER", line 4063
Solution: try to run the same sql statement ( DBMS_SCHEDULER.ADD_JOB_EMAIL_NOTIFICATION ) as user sys.
In memoriam – 3 - My father-in-law died a few weeks ago, aged 95. This is the story that he wrote for his children and grandchildren a few years ago describing his experienc...
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