About Sql*plus

From: <epeppanda_at_yahoo.com.cn>
Date: 16 Jan 2006 16:57:01 -0800
Message-ID: <1137459421.674773.189170@f14g2000cwb.googlegroups.com>

when I log on sql*plus,using this command,it failed

SQL> conn / as sysdba
ERROR:
ORA-12560: TNS:protocol adapter error

Then I using services name ,it sill unsuccessful

SQL> conn /@ora92 as sysdba
ERROR:
TNS-12500 TNS:listener failed to start a dedicated server process

I must startup database ,then it succeed

SQL> conn /@ora92 as sysdba
Connected.

the database on my local machine,
the parameter processes=150
in the SQLNET.ORA
SQLNET.AUTHENTICATION_SERVICES= (NTS) Received on Mon Jan 16 2006 - 18:57:01 CST