Complex sentence: Whilst many OLAP Servers such as Microsoft Analysis Services store pre-calculating consolidations and calculated elements to achieve rapid response times a Real Time OLAP Server will calculate the values on the fly, when they are required.
Split into simpler sentences: Whilst many OLAP Servers such as Microsoft Analysis Services store pre-calculating consolidations and calculated elements to achieve rapid response times. A Real Time OLAP Server will calculate the values on the fly, when they are required.