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    <p>There are many reasons why you should use a cube for analytical proccessing. </p> <ol> <li>Speed. Olap wharehouses are read only infrastractures providing 10 times faster queries than their oltp counterparts. See <a href="http://en.wikipedia.org/wiki/Online_analytical_processing" rel="nofollow noreferrer">wiki</a></li> <li>Multiple data integration. On a cube you can easily use multiple data sources and do minimal work with many automated tasks (especially when you use SSIS) to intergrate them on a single analysis system. See <a href="http://en.wikipedia.org/wiki/Extract,_transform,_load" rel="nofollow noreferrer">elt process</a></li> <li>Minimum code. That is, you need not write queries. Even though you can write MDX - the language of the cubes in SSAS, the BI Studio does most of the hard work for you. On a project I am working on, at first we used SSRS to provide reports for the client. The queries were long and hard to make and took days to implement. Their SSAS equivalent reports took us half an hour to make, writing only a few simple queries to trasform some data. </li> <li>A cube provides reports and drill up-down-through, without the need to write additional queries. The end user can traverse the dimension automatically, as the aggregations are already stored in the warehouse. This helps as the users of the cube need only traverse its dimensions to produce their own reports without the need to write queries.</li> <li>Is is part of the Bussiness Intelligence. When you make a cube it can be fed to many new technologies and help in the implementation of BI solutions.</li> </ol> <p>I hope this helps.</p>
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    1. USAthanasios Kataras
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    1. COthanks for the answer
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