ORA-ERRORS

I got ” ORA-02429: cannot drop index used for enforcement of unique/primary key ” error in Oracle database during drop index.

I got ” ORA-32593: database supplemental logging attributes in flux ” error in Oracle database during add supplemental log on Oracle database.

I got ” ORA-32018: parameter cannot be modified in memory on another instance ” error in Oracle database during parameter change on Oracle database.

I got ” ORA-00201: control file version incompatible with ORACLE version ” error in Oracle database during Startup database.

I got ” ORA-17629: Cannot connect to the remote database server  ” error in Oracle database during Standby database ( Dataguard ).

I got ” no parent backup or copy of datafile found  ” error in Oracle database during RMAN Image Copy Backup.

I got ” ORA-19750: change tracking file | ORA-19751 ORA-17502 ORA-15046 ORA-17503 ORA-15012 ” error in Oracle database during Open resetlogs.

I got ” Error 1017 received logging on to the standby | ORA-16191 ” error in Production for Oracle Dataguard.

I got “ RMAN-12008: could not locate backup piece | RMAN-12009 ” error in Oracle database during RMAN Restore datafile.

I got “ ORA-17503: ksfdopn Failed to open file | ORA-01565 ORA-17503 ORA-01034 ORA-27121 ” error in Oracle database during startup.