[oracle@db1 ~]$ export ORACLE_SID=ywkdb1 [oracle@db1 ~]$ echo $ORACLE_SID ywkdb1 [oracle@db1 ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Mon Oct 14 15:18:18 2013 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: O
