SSIS and Oracle connections

***UPDATE***

The new SSIS connectors for Oracle and Teradata are available now.

http://blogs.msdn.com/b/mattm/archive/2012/04/04/microsoft-connectors-v2-0-for-oracle-and-teradata-now-available.aspx

FYI the 2.0 version is for 2012 only… You want the 1.2 version for 2008

---Thanks to Mike Davis & Devin Knight for the info!

more help...

Using the Microsoft Connector for Oracle by Attunity with SQL Server 2008 Integration Services

http://msdn.microsoft.com/en-us/library/ee470675%28v=sql.100%29.aspx

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I was recently tasked with creating a test package to check the performance of SSIS loading data from MS SQL Server 2008 to an Oracle database and loading data from Oracle to MS SQL Server.

My tests have only been performed on a 32bit laptop running Windows XP (Yeah, I know...)

Here are the steps I took:

1. Install Oracle Developer Suite 10g (10.1.2.0.2) (including Forms and Designer)  http://www.oracle.com/technetwork/developer-tools/developer-suite/downloads/index.html  (for 64 bit test, you would just need to install the 64 bit version.)
2. Edit C:\DevSuiteHome_1\NETWORK\ADMIN\TNSNAMES.ORA by appending the TNS information provided by your Oracle DBA.
3. Edit C:\WINDOWS\system32\drivers\etc\hosts using notepad.  Add the host entries provided by your Oracle DBA to the file.
4. Create a new SSIS package, add a connection manager of type Native OLE DB\Microsoft OLE DB Provider for Oracle.  Enter SOMETEXT (see example TNS Entry below) in Server name, and the user name and password provided.  Click Test Connection.
5. Create an Execute SQL Task to truncate the Oracle table you will be loading.  Must be coded like this:  truncate table "SOME_TEST"."Movies"    **NOTE: SOME_TEST is the schema name.
6. Create another Execute SQL Task to truncate a SQL Server table called Movies2.
7. Create a data flow to pull data from SQL Server to Oracle.
8. Create a data flow to pull that data from Oracle into another new table in SQL Server (Movies2).
9. Data Types are tricky.  You may have to cast as nvarchar or numeric(38,0) when pulling from SQL Server and use derived column transformations when pulling from Oracle.
10. For the Oracle Source & Destination components, right click and select Show Advanced Editor.  Under component properties, set AlwaysUseDefaultCodePage to True.

ExSample TNS Entry: 

SOMETEXT =

  (DESCRIPTION =

    (ADDRESS = (PROTOCOL = TCP)(HOST = SOMESERVERA)(PORT = 1521))

    (ADDRESS = (PROTOCOL = TCP)(HOST = SOMESERVERB)(PORT = 1521))

    (LOAD_BALANCE = yes)

    (CONNECT_DATA =

      (SERVER = DEDICATED)

      (SERVICE_NAME = APPGA)

    )

  )

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Example Hosts entry:

86.7.5.309     SOMESERVERA

12.34.56.78   SOMESERVERB

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The following are the instructions my buddy Stephen sent me.  I didn't have to follow these b/c my test was only done on a 32 bit laptop.  I think he was developing on a 64bit environment.  I will post them here in the event they might help someone else.

If server is 64bit, Then we have to install both the 

32bit and 64bit drivers for the attunity connector utility. 

Can be found at:

http://www.microsoft.com/downloads/en/details.aspx?familyid=6732934C-2EEA-4A7F-85A8-8BA102E6B631&displaylang=en

Once installed, you'll have to installed the correct Oracle Client tools. 

This also requires you install the 32bit and 64bit versions. 

next you have to setup the Service Names on the DB box through oracle

using the Oracle Net Manager application. This has to be done for both 

32bit and 64bit installations. Name the service names the same. Remember

these are where you use the connection information of the oracle server.

Make sure you can connect to the Oracle instance on server

through the SQL-Plus untility.

You'll probably have to create a new folder called "ProgramFilesx86" on the root of installation path of SQL Server.

Then COPY everything from the "Microsoft Visual Studio 9.0" folder in that. THEN ALL BIDS shortcuts needs to ref

that direcory otherwise the connector wont allow BIDS to manually run the package since BIDS is a 32 BIT application.

Helpful Links:

http://www.attunity.com/forums/microsoft-ssis-oracle-connector/error-failed-load-oci-dll-1308.html

http://sqlblog.com/blogs/jorg_klein/archive/2011/06/09/ssis-connect-to-oracle-on-a-64-bit-machine.aspx

Funny quote:

"I do not expect that Microsoft will write an Oracle fast loader - currently it comes in around number 999 in my list of 1000 features for next version, just slightly ahead of recompiling for Linux." - Donald Farmer

http://gingerandsugar.blogspot.com/2007/06/export-sql-server-data-into-oracle.html

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