Major difference is the historical data which can be maintained in data warehouse instead of keeping it in your real time OLTP(database) system.Also we don't want to decrease the processing time of our oltp server for taking data for reporting and analysis purpose.Now why informatica and why other OLAP tools are required :coz companies don't want to ...
Almost $100,000 for a room! An extra room in an established house could cost you as much as $95,000, based on calculations by Mr Crossley. This represents the average difference in the median price of three versus four bedroom homes in six suburbs across Australia.
How much would it cost to add a 200 sf room (20'x10') onto a house. A bare room, with the concrete foundation as the floor inside. If it were built with the cheapest (reasonably quality) materials possible, with no heating, plumbing etc. Just a concrete foundation, attached to the house, with walls...