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Hi All, I am experiencing the following error when querying my DB. ORA-04020: deadlock detected whil

edited Apr 14, 2016 4:16PM in Database Tuning (MOSC) 1 commentAnswered ✓

Hi All,

Kindly support me to resolve this error.

Total System Global Area  320816520 bytes

Fixed Size                   726408 bytes

Variable Size             285212672 bytes

Database Buffers           33554432 bytes

Redo Buffers                1323008 bytes

Database mounted.

ORA-00604: error occurred at recursive SQL level 1

ORA-04020: deadlock detected while trying to lock object

SYS.CDC_ALTER_CTABLE_BEFORE

I am a newbie.

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