I am getting this "ORA -12154:TNS COULD NOT RESOLVE SERVICE NAME " ERROR WHEN I TRY TO LOGON USING PL/SQL DEVELOPER.I AM HAVING THE FOLLOWING ENTRIES IN MY TNSNAMES.ORA FILE:
stl_dr =
(DESCRIPTION=
(ADDRESS_LIST=

(ADDRESS=(PROTO COL=TCP)(HOST=m yhost)(PORT=152 1))
)
(CONNECT_DATA=
(SID=dr)(SRVR=D EDICATED)
)
)
The database I amtrying to connect is...