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 OLAP vs OLTP

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Sachin.Nand

2937 Posts

Posted - 2009-12-16 : 06:09:43
I am reading a book "Practical Business Intelligence with SQL Server 2005".
The author quotes

"Relational databases have become so popular and ubiquitous that many IT professionals think that every data storage and querying problem can (and should) be solved by a relational database. Similarly, when XML was first popularized, many people thought exactly the same thing about XML. The reality of course is that although structures such as relational databases and XML files have a wide range of uses, we should follow a practical rather than dogmatic approach and apply the right tool for the job."

"The key to the success of using OLAP databases in an interactive, user-friendly way is their performance. Queries against an OLAP cube, even ones that summarize years of history and huge amounts of transactions, typically return results in a couple of seconds at most, which is orders of magnitude faster than similar relational queries."
I would like to know your thoughts on this.

PBUH
   

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