Error updating CLOB in oracle : ORA-00600: [kcfrbd_2]

Question

I get this error when I want to update clob field.If the updated text is short, there is no problem, but when I want to enter a long data, I get an error. I try to update one column with clob data but When try to run this code block

 DECLARE
        large_txt CLOB;
    BEGIN
        large_txt:='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';
        update test set resim=large_txt where ID=1;
    END;

then i get an error

 Error report -
    ORA-00600: internal error code, arguments: [kcfrbd_2], [6], [0], [1], [19491072], [19491072], [], [], [], [], [], []
    ORA-06512: at line 5
    00600. 00000 -  "internal error code, arguments: [%s], [%s], [%s], [%s], [%s], [%s], [%s], [%s]"
    *Cause:    This is the generic internal error number for Oracle program
               exceptions.  This indicates that a process has encountered an
               exceptional condition.
    *Action:   Report as a bug - the first argument is the internal error number

Answer 1

ORA-00600 is a general error code for basically "An internal Oracle error occurred". This is a catch-all error code meaning something outside normal database operations happened. It's probably not a problem with your code. It is something you will have to take up with Oracle Support.

Since you said this started happening after an abnormal database shutdown, I'd say something internal is in an inconsistent state the database cannot understand, but that's just a guess.