troubleshooting Question

Oracle XE connectivity problem ORA-01034,ORA-27101

Avatar of akvaidyanathan
akvaidyanathan asked on
Oracle Database
36 Comments1 Solution6393 ViewsLast Modified:
Hi,

I'm trying to connect to Oracle XE using SQL developer and Toad, and am faced with ORA-01034 : Oracle not available and ORA 27101

I reckon the problem has to do with my tsnames,listener,sqlnet files

Here they are:

Listener.ora
=========

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = C:\oraclexe\app\oracle\product\10.2.0\server)
      (PROGRAM = extproc)
    )
    (SID_DESC =
    (GLOBAL_DBNAME = XE)
    (ORACLE_HOME = C:\oraclexe\app\oracle\product\10.2.0\server)
    (SID_NAME = XE)
    )
  )

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.10.16.45)(PORT = 1521))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)

SQLNET.ORA
===========
# This file is actually generated by netca. But if customers choose to
# install "Software Only", this file wont exist and without the native
# authentication, they will not be able to connect to the database on NT.

SQLNET.AUTHENTICATION_SERVICES = (NONE)


NAMES.DIRECTORY_PATH= (TNSNAMES)

TSNAMES.ORA
=-============

XE =
 (DESCRIPTION =
  (ADDRESS = (PROTOCOL = TCP)(HOST = 10.10.16.45)(PORT = 1521))
  (CONNECT_DATA = (ORACLE_SID = XE))
 )


10.10.16.45 is my own IP address got from ipconfig.

Been busting my head for a while now....Any help will be appreciated.
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