Here are a couple of useful things to know if you are trying to do that.
Let's assume you are storing information about employees and one of the pieces of information you have is their date of birth - the Birthday field in the image below.
How do you show their actual age in years on a page?
You can define a calculated field in your business object - and have VBCS use the "calculate value with formula" as the source for this field. Read the complete article here.
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