drtech dr

A member of the Philip Greenspun's Homepage community since December 22, 2008

If you were to log in, you'd be able to get more information on your fellow community member.

December 22, 2008, on Data Warehousing:
this article considered as a good article in data warehousing. I want to say that there is a query language called multidimensional Expression MDX .It is now the standard query language for OLAP.it is like Sql but with more capabilities in Grouping and more functions to facilitate OLAP operations.The most common function are ROLLUP and CUBE>>>>>>>>>>>>>>>>>>>>>>>>>>>etc. thanks to all.....