I am receiving the error 'ERROR - ORA-12541: TNS:no listener'when I try to log in to iSQLPlus in Oracle 10g. I have found several solutions on other forums but they are very general, answers like thereis something wrong in the tnsnames.ora file. I am not an experienced oracle user and do not know what the file is supposed to look like. Could someone please provide a more detailed response to this problem.
tnsnames.ora lokks as follows:
# tnsnames.ora Network Configuration File: C:\oracle\product\10.1.0\db_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
ORCL3 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = KMANAUTO)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl3)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
listener.ora looks like this:
# listener.ora Network Configuration File: C:\oracle\product\10.1.0\db_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\10.1.0\db_1)
(PROGRAM = extproc)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = KMANAUTO)(PORT = 1521))
)
)
)
I am accessing isqlplus with this url I have tried using port 1521 but nothing happens.
Thank You.
tnsnames.ora lokks as follows:
# tnsnames.ora Network Configuration File: C:\oracle\product\10.1.0\db_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
ORCL3 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = KMANAUTO)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl3)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
listener.ora looks like this:
# listener.ora Network Configuration File: C:\oracle\product\10.1.0\db_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\10.1.0\db_1)
(PROGRAM = extproc)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = KMANAUTO)(PORT = 1521))
)
)
)
I am accessing isqlplus with this url I have tried using port 1521 but nothing happens.
Thank You.
peration would block