ORA-01157: cannot identify/lock data file 7 - see DBWR trace file ORA-01110: data file 7: 'D:\DOCUMENTOS\BDORACLE\CLASE003.DBF'
C:\>sqlplus sys/sys as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Tue Apr 30 19:07:16 2013
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 778387456 bytes
Fixed Size 1384856 bytes
Variable Size 520097384 bytes
Database Buffers 251658240 bytes
Redo Buffers 5246976 bytes
Database mounted.
ORA-01157: cannot identify/lock data file 11 – see DBWR trace file
ORA-01110: data file 16: 'E:\oracle\app\nimish.garg\oradata\orcl\test_ts.dbf'
SQL> select NAME from v$datafile where file#=16;
NAME
--------------------------------------------------------------------------------
E:\ORACLE\APP\NIMISH.GARG\ORADATA\ORCL\TEST_TS.DBF
SQL> alter database datafile 16 OFFLINE DROP;
Database altered.
SQL> alter database open;
Database altered.