TheTechWorld
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Drill Through in Cognos
In Cognos when doing the drill through, there are three options available to the report maker. It is the confusion as to which needs to be chosen that makes using drill through difficult. Pass By Parameter Value This option is chosen when on clicking on the column on which you are making the drill through, Continue reading
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Inner and Outer Joins
When using Cognos for making reports, more often we require joining of two or more query subjects. But the place where most students get confused is when to use inner join and when to go for outer join. Well, for starters, you need to realize that if you are using multi dimensional model for creating Continue reading
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Data Mining and Data Warehousing
When understanding the world of Business Intelligence, there are two common terms that one hears, one is Data Mining and the other is Data Warehousing. But, have you ever wondered if the two are same or different. And if they are different what is the difference. Well, there is a bleak line of difference between Continue reading
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How Does Data Moves In Informatica
For the beginners, Informatica sounds like a simple tool where you first create mappings, run them, then create sessions and then workflows, connect the work flow and the session using links and run. The output is then checked from the server. But, do you know exactly what is happening and what does it means when Continue reading
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Data Model
Data Model is the description of the organization or the structure of data in the information system. This structure can be observed at three levels (It was given by ANSI in 1975)- Conceptual Data Model – This model describes the semantics of the data. In other words, it tells the manner in which users view Continue reading
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