Question : ORA-12154: TNS:could not resolve service name error in SQL Navigator
I have installed Oracle 8i Database in to a Win2000 Server and installed SQL Navigator 4 to a WinXP Client. When I tried to connect to the database it gave following error (using SQL Navigator)
ORA-12154: TNS:could not resolve service name
I have already setup the TNSNAMES.ORA file.
What can be the problem?.
Solution: ORA-12154: TNS:could not resolve service name error in SQL Navigator
Do you have multiple Oracle installations on your machines like Oracle client and Developer ?
If so you’ll have to set up the tnsnames.ora on both HOMES.
Or else setup the registry.
Add string value TNS_ADMIN to HKEY_LOCAL_MACHINESOFTWAREORACLE
Set the values of TNS_ADMIN to the folder where the tnsnames.ora you set up resides.