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Dimension Data was a company specialising in information technology services. Based in Johannesburg , South Africa , [ 2 ] the company maintained operations on every inhabited continent. [ 3 ] Dimension Data focused on services including IT consulting , technical and support services, and managed services .
The dimension is a data set composed of individual, non-overlapping data elements. The primary functions of dimensions are threefold: to provide filtering, grouping and labelling. These functions are often described as "slice and dice". A common data warehouse example involves sales as the measure, with customer and product as dimensions.
In 1997, Dimension Data acquired Internet Solutions by purchasing the remaining 75% of the company; previously they had acquired 25% the year before. [3] Ronnie Apteker, one of the founders of Internet Solutions stated that one of the main reasons for selling the company was to enhance the company's ability to deliver to the market and has joined forces with Dimension Data to meet market needs.
One good design rule [1] is to never store percentages or ratios in fact tables but only calculate these in the data access tool. Thus only store the numerator and denominator in the fact table, which then can be aggregated and the aggregated stored values can then be used for calculating the ratio or percentage in the data access tool.
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Typically dimensions are nouns like date, store, inventory etc. These dimensions are where all the data is stored. For example, the date dimension could contain data such as year, month and weekday. Identify the facts. After defining the dimensions, the next step in the process is to make keys for the fact table.
Below is a look at the coaches who had 40-plus NFL regular-season wins when they took on college coaching jobs, according to data from Pro Football Reference: Bill Belichick, UNC: 302 Lou Saban ...
Andile Abner Ngcaba is a South African businessman who has devoted most of his life and career to the field of technology, in particular communications.. Born on 12 June 1956, in Duncan Village, East London (Eastern Cape Province), Ngcaba currently lives in Johannesburg and Mountain View, California.