Enums vs Const vs Class Const in Delphi programming

Question

I have an integer field in a ClientDataSet and I need to compare to some values, something like this:

I can use const

const
  mvValue1 = 1;
  mvValue2 =          


        

Answer 1

An option you haven't thought of is to use a lookup table in the database and then you can check against the string in the database.

eg.

 Select value, Description from tbl_values inner join tbl_lookup_values where tbl_values.Value = tbl_lookup_values.value

if ClientDataSet_Field.AsString = 'ValueIwant' then