You might have faced this issue while trying to start the database. Most of the time this ora error occur during database restart after abnormal shutdown or power failure. To resolve it you need to recover the database using a backup control file as shown below. bash-3.2$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.4.0 Production on Wed Jul 21 16:49:07 2021 Copyright (c) 1982, 2013, Oracle. All rights reserved. Connected to an idle instance. SQL> startup ORACLE instance started. Total System Global Area 313159680 bytes Fixed Size 2250448 bytes Variable Size 222300464 bytes Database Buffers 83886080 bytes Redo Buffers 4722688 bytes Database mounted. ORA-00600: internal error code, arguments: [kcratr_nab_less_than_odr], [1], [17], [46616], [47275], [], [], [], [], [...
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