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Thank you for the reply and for the link ....

Yes, I understand. One of the most popular arguments for having Data Warehouse is that it should enable the user to access data/information faster.

I have been thinking about these points (Benefits of having a data Warehouse) for a long time now. At the moment we do not have a very large business or production database. The largest of tables transaction log) consist of around 8 million records with 40 fields. So, I don't think speed of access is our problem however, I do agree with some of the other benefits like:

2. Enhances Conformity And Quality Of Data
3. Boosts Efficiency "to have to gather data from multiple sources"

In our case we have many different types of databases (data islands) most of them SQL Server... So, I think that the DW would solve the challenge of bringing everything together in order to give the user a better view of how the business when all data is brought together into one view ("to have to gather data from multiple sources").

Again, thank you for the reply and the information ....
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