ORA-00600: Internal Error Code, Arguments: 
(Doc ID 2648741.1)
Last updated on APRIL 15, 2020
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168 and later
On : 22.214.171.124 version, RDBMS
Prior to ORA-00600: internal error code, arguments , the following errors are reported in database alert log:
ORA 600 [ktbdchk1: bad dscn] (in this case, the error was completely flood controlled)
A switchover from primary to standby and back from standby to primary was performed
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