deploy .net 3.5 -- Oracle APP

I am able to test my APP locally accessing a remote DB, but get the below error when deploying the .net 3.5 Oracle APP on a client that does not have Oracle DB installed locally.  I can do a "tnsping ..." from the client and see that they can access the Oracle db.

What do I need to install on the client to make this work ?

System.Data.OracleClient.OracleException: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor at System.Data.OracleClient.OracleException.Check(OciErrorHandle errorHandle, Int32 rc)
finance_teacherAsked:
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mrjoltcolaCommented:
If they have tnsping, then they have Oracle client. You need to configure tnsnames.ora with the same alias as is in your development copy.

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mrjoltcolaCommented:
Also be aware, tnsping does not tell you whether the service is available, it only tells you that the listener is responding to requests. The 12514 probably means you did not configure a listener. Perhaps your testing was done locally without the need for the listener. If so, configure listener.ora and restart the listener on the server.

Backup your old listener.ora (under $ORACLE_HOME/network/admin)
Edit it to match below, but rename MYSID to your instance and change ORACLE_HOME to match your Oracle home and HOST to match your IP address / hostname, then lsnrctl stop / lsnrctl start

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = /app/oracle/product/10.2.0)
      (PROGRAM = extproc)
    )
    (SID_DESC = (SID_NAME = MYSID))
  )
 
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = myhost.com)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
    )
  )
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schwertnerCommented:
For STATIC registration of the Oracle service to the Listener:

Go to the remote 10g installation where the Oracle server resides.

Backup LISTENER.ORA file!!!!!!!

In ...\network\admin open listener.ora

see

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = D:\Ora10g)
      (PROGRAM = extproc)
    )
    (SID_DESC =
      (SID_NAME = test)
      (ORACLE_HOME = D:\Ora10g)
    )
  )

Add the entry
    (SID_DESC =
      (SID_NAME = test)
      (ORACLE_HOME = D:\Ora10g)
    )
with regard to the particular Oracle Home and SID Name
Restart the listener:
c:>lsnrctl stop
c:>lsnctl start
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finance_teacherAuthor Commented:
SOLUTION
 1. installed Oracle CLIENT on CLIENT PC
 2. made sure TNSNAMES was in correct location
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