[firebird-support] stored procedure for a computed field?

[russell]

I have a stored procedure to calculate an indication of a record's age. It 
return "over 100 days ago" or "over 3 months ago" or ... Call it 
GetAgeMsg(myTS). Can I use a stored procedure to calculate a computed field for 
FB 2.5.x? If so what is the syntax?
 Many thanks.