Editing Online analytical processing (section)

===History===
The first product that performed OLAP queries was ''Express,'' which was released in 1970 (and acquired by [[Oracle Corporation|Oracle]] in 1995 from Information Resources).<ref>{{cite web|title=The origins of today's OLAP products |url=http://olapreport.com/origins.htm |publisher=OLAP Report |date=2007-08-23 |author=Nigel Pendse |access-date=November 27, 2007 |url-status=usurped |archive-url=https://web.archive.org/web/20071221044811/http://www.olapreport.com/origins.htm |archive-date=December 21, 2007 }}</ref> However, the term did not appear until 1993 when it was coined by [[Edgar F. Codd]], who has been described as "the father of the relational database". Codd's paper<ref name=Codd1993/> resulted from a short consulting assignment which Codd undertook for former Arbor Software (later [[Hyperion Solutions]], and in 2007 acquired by Oracle), as a sort of marketing coup. 

The company had released its own OLAP product, ''[[Essbase]]'', a year earlier. As a result, Codd's "twelve laws of online analytical processing" were explicit in their reference to Essbase. There was some ensuing controversy and when Computerworld learned that Codd was paid by Arbor, it retracted the article. The OLAP market experienced strong growth in the late 1990s with dozens of commercial products going into market. In 1998, Microsoft released its first OLAP Server{{snd}} [[Microsoft Analysis Services]], which drove wide adoption of OLAP technology and moved it into the mainstream.