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Replicate OLTP data to OLAP datawarehouse

 
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Dan

External


Since: Apr 03, 2008
Posts: 1



(Msg. 1) Posted: Thu Apr 03, 2008 8:02 am
Post subject: Replicate OLTP data to OLAP datawarehouse
Archived from groups: microsoft>public>sqlserver>replication, others (more info?)

I'm looking at replicating data from our OLTP database to a separate
SQL server for purposes of reporting on.
It needs to be real-time so i'm trying to use transactional
replication.

The data i'm replicating needs to be denormalized into my OLAP data
warehouse. What's the best way to do that?
Should i use DTS to transform the data, or use a Custom Sync Object
with a View?

For example, my OLTP database has the following tables

Client
--------
ClientId
BusinessName
ClientStatusId
ClientTypeId
ParentId,
etc....

ClientStatuses
---------------------
ClientStatusId
ClientStatus

ClientTypes
-----------------
ClientTypeId
ClientType


Now i need to replicate my Clients to my OLAP database, which has been
denormalized as follows:-

Clients
----------
ClientId
ClientName
ClientStatus
ClientType
ParentName

Can people recommend the best way to do this in real-time?

Many thanks

Dan

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Paul Ibison

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Since: Apr 04, 2008
Posts: 24



(Msg. 2) Posted: Fri Apr 04, 2008 2:12 am
Post subject: RE: Replicate OLTP data to OLAP datawarehouse [Login to view extended thread Info.]
Archived from groups: microsoft>public>sqlserver>datawarehouse, others (more info?)

You won't get real-time with replication, but let's say you mean near
real-time. I know there are a few alternatives here, but in that case my
preference is to replicate exactly as is. This is the simplest means of
maintenance. On the subscriber you can have views - indexed or not - which
reprresent the denormalised data to the client applications.
HTH,
Paul Ibison (www.replicationanswers.com)

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