How can I add fields to a clientdataset at runtime?

Question

I have a TClientDataSet, which is provided by a TTable’s dataset. The dataset has two fields: postalcode (string, 5) and street (string, 20)

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Answer 1

Well i found a simpler solution, as i have 24 fields in my sql i didnt wanted to add them all manually so i added a dummy field to the sql statement instead like:

select '      ' as city, the rest of the fields ... 

which i can modify in my program OnAfterOpen event.

Well i had to define in the sql how long that field should be by leaving enough empty spaces, for instance 5 empty spaces for 5 characters, so i must know how long the city name could be.