When you encounter the following issue when creating a trigger : Error report – ORA-00603: ORACLE server session terminated by fatal error ORA-00600: internal error code, arguments: [kqlidchg0], [], [], [], [], [], [], [], [], [], [], [] ORA-00604: error occurred at recursive SQL level 1 ORA-00001: unique constraint (SYS.I_PLSCOPE_SIG_IDENTIFIER$) violated 00603. 00000 – …