rasti.hil@hilandco.com +41 79 367-9677

Tuesday, 12 March 2013

Flush The Dns Linux

/etc/rc.d/init.d/nscd restart

Tuesday, 12 February 2013

Connect to MS SQL from Oracle XE 11gR2

So shortly about my plan to do

I have an Oracle XE 11gR2 instlled on Windows 2008 instance, from where i would like to connect to MSSQL server via dblink.

Steps what i have to do:

  1. Create and setup ODBC
  2. Edit listener.ora & tnsnames.ora
  3. Edit initMSSQL.ora & restart listener
  4. Tnsping to verify
  5. Create dblink
  6. Test

1. Create and setup ODBC

Go to Start -> Administrative Tools -> Data Sources (ODBC)
Under Use DSN click on Add button -> in new window choose SQL Server -> hit Finish
Next fill the necessary information as:
Go Next >
Next >
Next >
Finish. -> Test Data Source.
More details you can find at http://www.ehow.com/how ....connection.html

2. Edit listener.ora & tnsnames.ora

My new listener.ora file looks like this:
(C:\oraclexe\app\oracle\product\11.2.0\server\network\ADMIN\listener.ora)
SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = C:\oraclexe\app\oracle\product\11.2.0\server)
      (PROGRAM = extproc)
    )
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = C:\oraclexe\app\oracle\product\11.2.0\server)
      (PROGRAM = extproc)
    )
    (SID_DESC =
      (SID_NAME = MSSQL)
      (ORACLE_HOME = C:\oraclexe\app\oracle\product\11.2.0\server)
      (PROGRAM = dg4odbc)
    )

    (SID_DESC =
      (SID_NAME = XE)
      (ORACLE_HOME = C:\oraclexe\app\oracle\product\11.2.0\server)
    )
  )
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.1)(PORT = 1521))
    )
  )
DEFAULT_SERVICE_LISTENER = (XE)
Please note       (PROGRAM = dg4odbc )        from Oracle 11g it's no more (PROGRAM = hsodbc)

New tnsnames.ora file looks like this

XE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.1)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XE)
    )
  )
EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
    )
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
    )
  )
ORACLR_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
    )
    (CONNECT_DATA =
      (SID = CLRExtProc)
      (PRESENTATION = RO)
    )
  )
MSSQL =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.1)(PORT=1521))
    )
    (CONNECT_DATA =
      (SID = MSSQL)
    )
  (HS = OK)
)

3. Edit initMSSQL.ora & restart listener

Copy 
C:\oraclexe\app\oracle\product\11.2.0\server\hs\admin\initdg4odbc.ora 
To
c:\oraclexe\app\oracle\product\11.2.0\server\hs\admin\initMSSQL.ora
please pay attention that you should rename file like init<DESCRIPTOR NAME>.ora!
The new edited initMSSQL.ora look like this:
# HS init parameters
#
HS_FDS_CONNECT_INFO = MSSQL
HS_FDS_TRACE_LEVEL = off
Restart (reload) the listener
LSNRCTL> reload
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
The command completed successfully

4. Tnsping to verify

C:\oraclexe\app\oracle\product\11.2.0\server\bin>tnsping.exe MSSQL
TNS Ping Utility for 32-bit Windows: Version 11.2.0.2.0 - Production on 12-Feb-2013 21:48:36
Copyright (c) 1997, 2010, Oracle.  All rights reserved.
Used parameter files:
C:\oraclexe\app\oracle\product\11.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = 192.168.1.1)(PORT=1521))) (CONNECT_DATA = (SID = MSSQL)) (HS
 = OK))
OK (0 msec)

5. Create dblink

Conncet to Oracle database and create dblink
C:\oraclexe\app\oracle\product\11.2.0\server\bin>sqlplus ora_user/ora_pwd@192.168.1.1:1521/xe
SQL*Plus: Release 11.2.0.2.0 Production on Mar. Feb. 12 21:58:31 2013
Copyright (c) 1982, 2010, Oracle.  All rights reserved.
Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - Production


SQL> CREATE DATABASE LINK MSSQL
  2  CONNECT TO ms_user IDENTIFIED BY ms_pwd
  3  USING 'MSSQL';
Database link created.

6. Test

SQL> select * from testTable @ MSSQL;
id                         val
------------------ --------------------
1                          some val 1
2                          some val 2

Thursday, 7 February 2013

Run Oracle Universal Installer on English

Simply run oui with following commnad

setup.exe -J-Duser.language="en"