Recovering from Missed /Deleted dbf file in Oracle

Scenerio- one or more datafiles are deleted from OS level and databae is not geeting open. Issue SQL> startup ORA-32004: obsolete or deprecated parameter(s) specified for RDBMS instance ORACLE instance started. Total System Global Area 534462464 bytes Fixed Size 2215064 bytes Variable Size 390071144 bytes Database Buffers 134217728 bytes Redo Buffers 7958528 bytes Database mounted. ORA-01157: cannot identify/lock data file 8 - see DBWR trace file ORA-01110: data file 8: '/u01/app4/oracle/oradata/uatdb3/rman_tbs02.dbf' Solution SQL> alter database datafile '/u01/app4/oracle/oradata/uatdb3/rman_tbs02.dbf' offline drop; Database altered. SQL> alter database backup controlfile to trace as '/u01/app/test.ctl'; Database altered. SQL> alter database open 2 ; Database altered.