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TNS NO LISTNER [message #188804]

Mon, 21 August 2006 13:54

sheharyararshad
Messages: 10
Registered: May 2006
Location: KUWAIT

Junior Member

hello
can any one plz help me out in one problem i have a database oracle 10g n windows xp platform ,i am trying to connect visual studio 2005 to oracle database through database wizard in visual studio 2005 while connecting it gives error in visual studio "ORA-12154:TNS:COULD NOT RESOLVE SERVICE NAME" .listner is started already.name of the database is "orcl".computer name is "shary".
configuration of listner file is

# listener.ora Network Configuration File: H:\oracle\product\10.1.0\Db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = H:\oracle\product\10.1.0\Db_1)
(PROGRAM = extproc)
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
)
)

plz can nay one sort it out this problem i will be very thankfull.
take care
shary

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Re: TNS NO LISTNER [message #188911 is a reply to message #188804]

Tue, 22 August 2006 06:27

rohank009
Messages: 9
Registered: April 2006
Location: India

Junior Member

Hi,

ur listener file doesn't seem to have the SID name in it,
so u recreate ur listener using net8 configuration assistant,
or create it by seeing other old listener file which is working.

Both listener.ora and tnsnames.ora should have same SID.

Regards,
Rohan

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Re: TNS NO LISTNER [message #188960 is a reply to message #188804]

Tue, 22 August 2006 10:23

jesuisantony
Messages: 166
Registered: July 2006
Location: Chennai

Senior Member

Please check if the entry in the tnsnames.ora file is fine.

Also confirm the connectivity by the command

tnsping database_name

The command should be executed in the OS prompt.

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Re: TNS NO LISTNER [message #189207 is a reply to message #188960]

Wed, 23 August 2006 11:08

sheharyararshad
Messages: 10
Registered: May 2006
Location: KUWAIT

Junior Member

hello
thank u for urs quick response actually the proble is that before i have installed oracle 10g and visual studio 2005 in windows xp . it was working fine visual studio .net was connecting with oracle 10g and there was no error like "TNS NO LISTNER UNABLE TO RESOLVE SERVICE NAME".but after that i installed oracle developer 10g .after installing developer now its giving error tns no listener unable to resolve service name in visual studio as well as in oracle developer .infact this both oracle developer is installed in h: drive but diff folder like oracle and oracle developer
so plz do the need full
take care
bye

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Re: TNS NO LISTNER [message #189218 is a reply to message #188804]

Wed, 23 August 2006 11:55

BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal

Senior Member

Likely you now have multiple ORACLE_HOME folders/trees; which means multiple tnsnames.ora.
Also all too frequently I've seen similar error messages due to problems in the listener.ora file. (Again you may have more than 1)

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Re: TNS NO LISTNER [message #189332 is a reply to message #189218]

Thu, 24 August 2006 03:29

sheharyararshad
Messages: 10
Registered: May 2006
Location: KUWAIT

Junior Member

hello
once again yes oracle database 10g is installed on oracle folder and developer is installed on developer folder separately but on the same drive so can u plz tell me the solution what can i do now in order to connect developer with database coz its giving me "TNS NO LSTNER UNABLE TO RESOLVE SERIVICE NAME".
plz tell me the complete procedure to solve the problem.
plz do the need full
take care bye
shary

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