Drop database ORA-01504 Problems

Drop database ORA-01504 problems oracle 11g for win2008dc, drop database. c: \ Users \ Administrator> set nls_lang = AMERICAN_AMERICA.ZHS16GBK C: \ Users \ Administrator> sqlplus "/as sysdba" SQL * Plus: release 11.2.0.3.0 Production on Wed May 8 08:36:45 2013 Copyright (c) 1982,201 1, Oracle. all rights reserved. connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0-64bit ProductionWith the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> shutdown immediate; ORA-01507: database not mounted ORACLE instance shut down. SQL> startup mount restiricted; ORACLE instance started. total System Global Area 4275781632 bytesFixed Size 2262048 bytesVariable Size 2650803168 bytesDatabase Buffers 1610612736 bytesRedo Buffers 12103680 bytesORA-01504: database name 'restiricted' does not match parameter db_name 'orcl' SQL> shutdown immediate; ORA-01507: database not mounted ORACLE instance shut down. SQL> startup nomount restrict; ORACLE instance started. total System Global Area 4275781632 bytesFixed Size 2262048 bytesVariable Size 2650803168 bytesDatabase Buffers 1610612736 bytesRedo Buffers 12103680 bytesSQL> alter database mount; Database altered. SQL> drop database; Database dropped. disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0-64bit ProductionWith the Partitioning, OLAP, Data Mining and Real Application Testing optionsSQL> exit C: \ Users \ Administrator>-EOF-