OLAP and ORACLE

Hi All,
I am new to the concepts of OLAP. I want to use oracle olap using java(JOLAP). Could you plese help me that how to I start it and what are the requirement to start it.
Regards,
Moji

Yes you can create reports that combine OLAP and relational data together. Much depends on what you are trying to achieve.
- If you are looking to drill-through from OLAP to relational data Discoverer provides a drill through capability that allows users to define OLAP queries, perform their analysis using multi-dimensional concepts and then drill through into a relational data source via a URL drill out to a Discoverer relational workbook. Currently Discoverer OLAP does not support run time parameters, however, you can created saved selections that allow users to click on pre-defined query filters and apply then to an existing query. For example you could create a saved selections that show the following :
top 5 products based on revenue
top 5 products based on margin
bottom 5 products based on revenue
bottom 5 products based on margin
top 5 customers based on revenue
top 5 customers based on margin
bottom 5 customers based on revenue
bottom 5 customers based on margin
etc, etc
At the moment it is not possible to provide a prompt to allow the user to change value '5' to day '10'.
- if your reporting tool of choice supports embedded total dimensions then it is possible to create special relational views over the multi-dimensional model and provide relational access to the data objects. Both Business Objects XIR2 an Oracle Business Intelligence Enterprise Edition support embedded total views. This will allow you to create reports that accept run time parameters to filter your data set.
As this method relies on access to the multi-dimensional model it is very easy to combine that data with related relational data (assuming the keys are the same). There is more information on the OLAP home page on OTN about creating and managing relational access to OLAP cubes.
Hope this helps
Keith

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