Subject Error while trying to do a multiplication with parameters
Author Andrei Luís
Hello to all,

I'm trying to do a multiplication using a parameter like this:

qry_tmp.SQL.Text := 'select Sum(nfi.qtde * nfi.valor) * :wdesc from
notasfiscaisitens nfi';
qry_tmp.ParamByName('wdesc').asCurrency := 0.05;

When the line that feed the parameter run, it raises the following
error: 'strings cannot be multiplied in dialect 3'

I understand that IBO is trying to prepare the SQL and it is not
evaluating if the parameter is a text or a numeric. What can I do to
make this code run?