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What impact on performances in SQL 2008 USE OF LINK SERVER in Data warehouse enviroment

Posted on 2012-09-06
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Hi,

I recently architectoring and  developing in a large data warehouse project, for this project, I use link server in terms of data extraction from source to the Data warehouse envrioment, and also I use link server in the data warehouse staging and to the data warehouse production enviroment.these link server connections are referred in SSIS packages.

My question to you is; what impact in terms of use of link server in the data warehouse, does it cost performance issues on data transfer?

Regards,
kplan
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Question by:keplan
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by:MrAli
ID: 38374395
Recently I had to use linked servers to update millions of rows for a Tier 1 telco when they realized some of the billing information wasn't matching what should have been coming out of ETL.  It took several hours and we got it in 10 minutes before the billing deadline.  

Lesson learned.  Linked servers are slow as molasses, and worse, I couldn't use bulk logged operations.  I played around with "Service Broker" and that makes a lot of sence.  Service Broker is very fast and does queues up messages (or statement results).  It took a lot to wrap my head around it but it's a very nice alternative.
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by:keplan
ID: 38374793
Dear MrAli,

Can you give me how "Service Broker" work,
in link server, we use <server_name>.<dbname>.<schema>.<tablename>,
sorry, Im not familier with Service Broker, can you shed the light on this please?
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keplan earned 0 total points
ID: 38385141
any update on my request please, I'm happy to get any update
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by:keplan
ID: 39778803
xzs
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