Need assistance with ORA-12154 issue

I know this has been answered several times so i'll try to eliminate most of the common troubleshooting.
I'm on a 64 bit windows server running one database called PECDB on Oracle Database 10.2.0.1.
sqlnet.ora:
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
TNSnames.ora was recreated using Net Config Assistant and ran lsnrctl status and tnsping PECDB to verify it is correct. Sqlplus works and connecting using MSACCESS (ODBC) from a client machine works also.
Problem: A user requested the IT dept to install his program called "STATA 10" directly on the server to take advantage of the memory. STATA uses the ODBC to connect to the database. I created the ODBC on the server which tested successfully. Now in Stata you type the following command to list all ODBC's available:
odbc list
which shows:
Data Source Name Driver
PECDB Oracle in PECDB
Then you type this that should list all tables owned by the specified user:
odbc query "PECDB", user(x) password(x)
but instead I get this error message:
[Oracle][ODBC][Ora]ORA-12154: TNS:could not resolve the connect identifier specified
, SQLSTATE=08004
[Oracle][ODBC][Ora]ORA-12154: TNS:could not resolve the connect identifier specified
I'm not sure where else to look and hoping someone here can help me.

user6711087 wrote:
I know this has been answered several times so i'll try to eliminate most of the common troubleshooting.
I'm on a 64 bit windows server running one database called PECDB on Oracle Database 10.2.0.1. PECDB? Uh, could I hazard a guess and ask you to come down to room 101?
>
sqlnet.ora:
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
TNSnames.ora was recreated using Net Config Assistant and ran lsnrctl status and tnsping PECDB to verify it is correct. Sqlplus works and connecting using MSACCESS (ODBC) from a client machine works also.
Problem: A user requested the IT dept to install his program called "STATA 10" directly on the server to take advantage of the memory. STATA uses the ODBC to connect to the database. I created the ODBC on the server which tested successfully. Now in Stata you type the following command to list all ODBC's available:
odbc list
which shows:
Data Source Name Driver
PECDB Oracle in PECDB
Then you type this that should list all tables owned by the specified user:
odbc query "PECDB", user(x) password(x)
but instead I get this error message:
[Oracle][ODBC][Ora]ORA-12154: TNS:could not resolve the connect identifier specified
, SQLSTATE=08004
[Oracle][ODBC][Ora]ORA-12154: TNS:could not resolve the connect identifier specified
I'm not sure where else to look and hoping someone here can help me.

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