TAILIEUCHUNG - Oracle Essbase 9 Implementation Guide- P38

Oracle Essbase 9 Implementation Guide- P38:Essbase is a multidimensional database management system. The name Essbase stands for Extended Spread Sheet dataBASE. Using the custom add-in provides the end-user with near seamless compatibility in the Microsoft Excel spreadsheet program. | Calculating your Essbase Cube Do this instead FIX @IDESCENDANTS Calendar Periods AND @LEVMBRS Calendar Periods 0 Any Calculation Function ENDFIX In the following examples we will show you how to narrow down the amount of data you will calculate in your database for various scenarios. Basic FIX and ENDFIX examples To begin with as mentioned earlier FIX and ENDFIX commands can be nested. We have also given you some tips regarding when to use the FIX and ENDFIX commands and what to avoid when nesting them like the same dimensions named in separate FIX commands. For starters this is how you would code the simplest of FIX and ENDFIX commands FIX @IDESCENDENTS Calendar Periods Gross Stock Production - Sales ENDFIX Notice how the FIX command has an area to list selection dimensions. Within the parenthesis you can list multiple dimension names separated by commas member names or a list of member functions that returns member names. There are also functions that return members at specific levels in the outline. You can even use basic structuring similar to a mathematical formula with and or statements bracketed by extra parenthesis. In the example immediately above notice how we are calculating the value for Gross Stock for all Calendar Periods. If your database was extremely large with several years of historical data in it this would be inefficient to always calculate the entire Time dimension. Now suppose you added User Defined Attributes UDAs to the periods in the time dimension and only wanted to calculate current periods Here is what you would do 1. Add UDAs of Historical Current and Forecast to the individual year members and their children in the database outline. For example if the current calendar year is 2009 then 2009 and all of its children would have the UDA of Current added to them in the outline. All years and their children prior to 2009 would get the UDA of Historical. All years and their children later than 2009 would get the UDA of Forecast added in the

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