Perl Calculations inside the schema

2013-05-15  Source: Original Site  Category:Rational  Views:0 

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I am not a programmer but currently learning Perl and in need of help from people who are more experienced then I with calculations in Perl. My problem is as follows. The sum of the following three fields (Number of Licenses, Cost Per License, Maintenace Cost) needs to be calculated and the data placed in the Total Cost field. When ever there is a change made to the above mentioned fields then the Total Cost field will be updated. If someone out there has already worked through this type of issue I would be greatful for an example. Also I some guidance on what type of hook I should be trying to build this calculation in would be helpful.

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