Suggestions Request for Proposed Project

I'm after suggestions for the best way to implement a project I'm planning. I download bank statement details as .CSV files which include date, amount and description details per transaction. I want to be able to produce time period (eg, year and month) reports on transaction amounts by category, where a category is identified by the description field of the TX. For example, if a TX description field includes the string "BP", "SHELL" or "CALTEX", the category would be "FUEL". The object of this exercise is to be able to report expendature by category. There will be thousands of TX's, but only a small number of categories, say, 20.
From my research to date, it looks like Oracle OLAP (because of the flexibility of it's cube and dimension constructs) might be the tool to use for this project, but I can't find introductory examples on using OLAP for this purpose. I have Oracle 11g server and client installations on a couple of Linux Fedora 10 boxes, and a server database with the OLAP component installed. From my client, I can start Oracle 11g Analytic Workspace Manager and add my server database to the tree. SQL Developer is also configured to connect to my server database. I also have a bunch of python modules which I have written to load TX data from downloaded .CSV files into server database tables.
Can anyone assist an Oracle developer newbie (with many years of Oracle DBA experience) with suggestions on the way forward, or pointers to doco that will assist me? Is OLAP/AWM the appropriate tool for this project, or is some other approach going to be simpler?
TIA,
Jon

It sounds like your data is dimensional, has hierarchies and you have the need for aggregate level analysis and time series calculations. If so, the OLAP Option is probably a good choice. A few thoughts for you:
- Data is loaded into a cube from tables or views (you will need to load data from the csv files into tables. It soulds like you will need at least two dimension tables (category and time) and a fact table. (If aren't familar with dimension and fact tables, Google 'dimension table', 'fact table' and 'star schema'. You will find plenty of information.)
- If you are only analyzing data at the category level, don't bother to load TX detail into the cube. You can aggregate data in a view or you can map the cube to the source tables in such a way that the cube will aggregate while it's loading from the fact table.
- Analytic Workspace Manager (AWM) is the correct tool for designing and managing cubes.
- There are lots of examples and tutorials on the OLAP Option OTN page. http://www.oracle.com/technology/products/bi/olap/index.html . You might want to start with the overview and creating cubes videos.
- You don't mention what you are going to use for a query tool. Excel 2007 with the Simba MDX provider is a good choice. (There is a video on the OTN page about using Excel with the cube. See http://www.simba.com/MDX-Provider-for-Oracle-OLAP.htm for information about the MDX provider.) If you happen to be using Oracle Business Intelligence Enterprise Edition, be sure to get the OBIEE Plug-in for AWM. It's on the OLAP OTN page.
Good luck!

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