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tnsnames.ora

ENGDB01 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = xxx.xx.xx.xx)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = ENGDB01)
    )
  )

listener.ora

# listener.ora Network Configuration File: C:\oracle\product\10.2.0\client_1\network\admin\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = C:\oracle\product\10.2.0\client_1)
      (PROGRAM = extproc)
    )

(SID_DESC  =
            (GOLBAL_DBNAME=  ENGDB01)
            (ORACLE_HOME  =  C:\oracle\product\10.2.0\client_1)
            (SID_NAME=ENGDB01)
        )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = xxx.xx.xx.xx)(PORT = 1521))
      (ADDRESS = (PROTOCOL


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