What is IBM Cognos?

Cognos course info: http://goo.gl/7JemvS

What is IBM Cognos
•Cognos is a Querying tool
•Cognos being a tool it creates queries automatically; or it generates queries automatically, if the query of Cognos is not supporting the required result, the SQL can be edited.
•Cognos is a business intelligence tool
•Cognos is a decision supporting system
•Heterogeneous data bases can be accommodated in single data base with Cognos