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Home -> Community -> Usenet -> c.d.o.server -> Re: ORA-12560: TNS:protocol adapter error
Mark,
You have to create database first and then to start the SQL*Plus. Without one you are trying to connect to non-existing one.
If you have more than one database on your machine then open command prompt:
c:> set oracle_sid=<SID>
c:> sqlplusw
Also make sure that your OracleService<SID> is started before doing the above. The error could be seen if the service is not running.
Check the latest Oracle DBA forums:
http://www.dbaclick.com/cgi-bin/ib3/ikonboard.cgi
Hope that helps,
Trifon Anguelov
Senior Oracle DBA