How connect Oracle Database with Ms SQL Server Database

By shoaib

Here I have Install MS SQL Server 2005 (32- Bit) On Windows server 2003 R2

(64 Bit)

So we install DG4ODBC driver (64 Bit) on Server where we install MS SQL

server database. Because Windows operating system its 64 bit so

Open this gateways_odbc_64bit folder and click on open setup.exe

Here you only select this Oracle Database Gateway for ODBC 11.2.0.4.0

from Components and click on Next Tab

During Installation this Oracle Net Configuration Assistant: window open

During Listener Configuration if it’s give error like this so use another port

number here we use 1533 port number

Just click on No

And change port number 1533 and click on next tab

You can check this DG4ODBC driver successfully installed

After DG4ODBC driver install now configure this steps on windows where you

install MS SQL SERVER 2005

Go to Start > Control Panel > Administrative Tools > Data Sources (ODBC)

This ODBC Data Sources Administrator window Open just click on this System

DSN

From this System DSN page click on this Add tab

Create New Data Source page open here select SQL Server and click on Finish

tab

Create a New Data Source to SQL Server page open

Here give any name in this What name do you want to use to refer to the data

source ?

Here we give testmssql in name tab

After that in How do you want to describe the data source ? give any thing

Here we give in Description tab we type testmssql

And in Which SQL Server do you want to connect to ? tab give your host name

where you install Ms Sql server 2005 here my host name its tmssql so I give

tmssql in Server tab

Then click on next

Here select this With SQL Server authentication using a login ID and password

entered by the user

And select this connect to SQL Server to obtain default setting for the additional

configuration options and enter SA user and its password in password tab

Select this Change the default database to and here you select your ms sql server

database name you want to connect here TEST1 its my ms sql server database

name and click on next tab

Leave this all setting by default and click on finish

ODBC Microsoft SQL Server Setup page open click on this Test Data Source

tab

Test is successfully completed and now click on Ok

Click on OK

Testmssql successfully create in system dsn tab you can find here now click on

OK

Now you can configure this dg4odbc driver for oracle database using this steps

Go to your dg4odbc home where you install

Here I install on E drive go to hs folder and open this admin folder

E:\product\11.2.0\tg_1\hs\admin

Here create this init<sid>.ora file.

You can give any name at sid. Old drive before create init file

Here we create new init file.

Into this initmssql.ora file look like this

Here at this HS_FDS_CONNECT_INFO give name as you mention in your

System DSN and HS_FDS_TRACE_LEVEL also Off

Same of this init.ora file its look like below

# This is a sample agent init file that contains the HS parameters that are

# needed for the Database Gateway for ODBC

#

# HS init parameters

#

HS_FDS_CONNECT_INFO = testmssql

HS_FDS_TRACE_LEVEL = OFF

#

# Environment variables required for the non-Oracle system

#

#set <envvar>=<value>

After creating initmssql.ora file into this admin folder its look like below

Now also change into your listener file in your DG4ODBC driver home and

open network and open admin folder put enter into your listener.ora file

Open this E:\product\11.2.0\tg_1\NETWORK\ADMIN

Here in this listener.ora file put your sid_name as you mention in this

init<sid>.ora file this sid name put here at this sid_name and also put this line

into this listener.ora file

ENVS =

"EXTPROC_DLLS=ONLY:E:\product\11.2.0\tg_1\bin\oraclsra11.dll"

Sample of this listener file it’s below

# listener.ora Network Configuration File: E:\product\11.2.0\tg_1\network\admin\listener.ora

# Generated by Oracle configuration tools.

#LISTENER =

# (DESCRIPTION_LIST =

# (DESCRIPTION =

# (ADDRESS = (PROTOCOL = TCP)(HOST = tmssql)(PORT = 1533))

# (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1533))

# )

# )

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1533))

)

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = tmssql)(PORT = 1533))

)

)

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = mssql)

(ORACLE_HOME = E:\product\11.2.0\tg_1)

(PROGRAM = dg4odbc)

(ENVS = "EXTPROC_DLLS=ONLY:E:\product\11.2.0\tg_1\bin\oraclsra11.dll")

)

)

ADR_BASE_LISTENER = E:\product\11.2.0\tg_1

After that restart your listener than check your listener status it’s successfully

loaded

Now on Ms SQL Server we successfully configure this DG4ODBC driver.

Now we create Service for Ms SQL server and DB Link on Oracle RAC database.

Here we install Oracle 10g Rac database on another server its oracle 10g

rac database ( 64 Bit ) and Operating system its Windows server 2008

Enterprise Edition Service Pack 2 (64 Bit)

Now on Oracle server edit your tnsnames.ora file

You can find tnsnames.ora file at this location OracleHome/Network/admin

My file here at this location

C:\oracle\product\10.2.0\db_1\NETWORK\ADMIN

You can write this line into your tnsname.ora file

MSSQL = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = tmssql)(PORT = 1533)) ) (CONNECT_DATA = (SERVICE_NAME = mssql)

) (HS = OK) )

Here this description of this service

MSSQL – it’s a service name you can write any name as you want as a

service name to connect with MS Sql Server

HOST = tmssql – Host name of where you install Ms Sql Server.

SERVICE_NAME = mssql – here you mention sid name you define on

Ms sql server init<sid>.ora and also in listener file at Ms Sql server sid

name.

HS= OK – You mention this

After editing my tnsnames.ora file its look this below

After creating service on oracle RAC server we tested it using tnsping to this

Ms Sql service we created before

Now after successfully created service for MS SQL Server database on Oracle

first node we create db link to connect with MS SQL Server database

SQL> create database link con_mssql connect to "sa" identified by "oracle" using

'mssql';

In this link

con_mssql -- it’s a link name you can give any name here you want

here we give con_mssql as a db link name

connect to "sa" identified by "oracle" --- here “sa” it’s a Ms SQL

database user with whom you want to connect to and give this “sa” user

password also

'mssql' -- mssql it’s a service name which we create before using this

service we can connect oracle database with ms sql server database

Now you can check this link successfully created

Now you can insert data into ms sql server using this db link from oracle

to ms sql server

Before inserting row check table no any row into this emp table

Insert row from oracle to ms sql server using db link

After inserting row you can check data into your ms sql server database

row is successfully inserted

You can perform select query using this syntax also from oracle database

Now if you have more than one MS SQL Server

database and you want to connect with this database

from oracle to ms sql server database.

For this purpose here we create one more database at ms sql server site

Here we create new MS SQL Server database with name of test2

For this task again we have to put entry of this test2 database in ODBC

using below task

Go to Control Panel > Administrative Tools > Data Sources (ODBC)

And click on System DSN and Click on Add tab

Select this SQL Server and click on Finish

Create a New Data Source to SQL Server page open

Here give any name in this What name do you want to use to refer to the data

source ?

Here we give test2mssql in name tab

After that in How do you want to describe the data source ? give any thing

Here we give in Description tab we type tes2tmssql

And in Which SQL Server do you want to connect to ? tab give your host name

where you install Ms Sql server 2005 here my host name its tmssql so I give

tmssql in Server tab

Then click on next

Here select this Change the default database to

This test2 we create new database in ms sql server

After add this database in ODBC now we have to create new init.ora file on ms

sql server database

For that go to your DG4ODBC driver home \ hs\admin

Here my path its “E:\product\11.2.0\tg_1\hs\admin”

Go to this path and create new init.ora file just copy and past your existing

init.ora file and rename it.

Init<sid>.ora file here we create in this sid you can give any name for sid.

Here we create new init file for this new database its name “ initmssqln.ora ”

In this sid name you can give any name as you want.

Now in this initmssqln.ora file give your new ms sql server database name you

mention in this ODBC System DSN

At this HS_FDS_CONNECT_INFO parameter

After that put entry of this your new ms sql server information into your

listener.ora file on ms sql server computer where you install dg4odbc driver

Go to E:\product\11.2.0\tg_1\NETWORK\ADMIN and open this listener.ora

file

And put this entry into your listener.ora file

(SID_DESC =

(SID_NAME = mssqln)

(ORACLE_HOME = E:\product\11.2.0\tg_1)

(PROGRAM = dg4odbc)

(ENVS =

"EXTPROC_DLLS=ONLY:E:\product\11.2.0\tg_1\bin\oraclsra11.dll")

)

Here this sid_name its name you mention in your init<sid>.ora name. as sid

name

After editing in listener file my listener.ora file look like this as mention below

After editing in listener.ora file restart the listener. If its stuck while

restarting you can manually restart its service from service.msc restart its

listener service from there

Or you can manually restart your ms sql server

Now after that create new service for this new database on oracle rac server on

first node.

Put entry in your tnsnames.ora file on oracle RAC server first node for this your

new service for ms sql server.

Open this your tnsnames.ora from this location

C:\oracle\product\10.2.0\db_1\NETWORK

NWMSSQL =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = tmssql)(PORT = 1533))

)

(CONNECT_DATA =

(SERVICE_NAME = mssqln)

)

(HS = OK)

)

NWMSSQL – it’s a service name

SERVICE_NAME = mssqln – its name we provide in init<sid>.ora. this

mssqln its sid name we mention there in init<sid>.ora file.

After successfully create service for ms sql server on oracle database we

can check it using tnsping to this nwmssql service we create for ms sql

server

After successfully configure this new service for new ms sql server

database we create new db link for this new ms sql server database using

this

In this create database link

con_newms -- it’s a database link name with this link we can connect

oracle database to ms sql server database

"sa" identified by "oracle" – it’s a ms sql server database user and its

password

Nwmssql – its s service name we create using this service name we can

connect oracle database to ms sql server database.

We can check this this link is successfully configured.

If you want to use this db link on your another node on RAC database

Here after created db link on first node you cannot use this db link on your

another node on rac database. If you want to use this db link on your another

node you have to create service on your another node to connect your oracle

database with MS SQL Server.

SQL> create database link con_newms connect to "sa" identified by "oracle" using

'nwmssql';

Just open your tnsnames.ora file from your another node and put entry same as

you mention on your first node.

Node1 tnsnames.ora file

Now open your tnsnames.ora file on your second node and past this MS SQL

Server service info in this tnsnames.ora file

******** MS SQL SERVER 2005 SERVICES ************

MSSQL =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = tmssql)(PORT = 1533))

)

(CONNECT_DATA =

(SERVICE_NAME = mssql)

)

(HS = OK)

)