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			| Oracle Startup [message #523201] | Fri, 16 September 2011 03:48  |  
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				|  | gxeon Messages: 53
 Registered: January 2011
 Location: Mumbai
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	| Hello, 
 i have windows 2008 server R2 on which i have installed oracle 11g R1 64bit(server) and 11gR1 32 bit(client).
 when i try to start database using set ORACLE_SID=dbname, it does not start.but when i try using sqlplus sys/sys@sidname as sysdba, it gets start.
 now i want to open my database in mount mode so that i can set archive log mode. but unable to do this because when i use
 sqlplus sys/sys@sidname as sysdba. it directly opens in read write mode.
 
 Again if i shut down the database using shut immediate;
 it doesn't start, gives the error
 ora-12514 listener does not know the service requested in connect descriptor
 TNS: protocol adapter error.
 
 if i stop and start the service through services.msc, database starts in read write mode.
 i doubt when i shut down the database listener gets unregisted from instance.
 
 pls help..i am new to Oracle DBA
 
 
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			| Re: Oracle Startup [message #523226 is a reply to message #523201] | Fri, 16 September 2011 05:20  |  
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				|  | Michel Cadot Messages: 68770
 Registered: March 2007
 Location: Saint-Maur, France, https...
 | Senior MemberAccount Moderator
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	| Quote: when i use sqlplus sys/sys@sidname as sysdba. it directly opens in read write mode. This does not open the database, this just connect to the instance.
 
 Quote:
 i doubt when i shut down the database listener gets unregisted from instance. You doubt wrong.
 1/ The listener does not register to the database, the instance register to the listener
 2/ When the instance shut down, it is unregistered from the listener.
 
 Advice: startup only on local connection and not from a remote site, it is a security hole.
 
 Regards
 Michel
 
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