How use the insert query using parameters?

Question

When i try with this query i get an error says that Perameter email doesn\'t exist, i am sure that the variables : email, login_pass, payment_method,operateur are valid and

Answer 1

Found the answer !

MySQLQuery2.SQL.Clear;
MySQLQuery2.SQL.Add('INSERT INTO COUNTRY (NAME, CAPITAL, POPULATION)');
MySQLQuery2.SQL.Add('VALUES (:Name, :Capital, :Population)');
MySQLQuery2.Params[0].AsString := 'Lichtenstein';
MySQLQuery2.Params[1].AsString := 'Vaduz';
MySQLQuery2.Params[2].AsInteger := 420000;
MySQLQuery2.ExecSQL;

Thankyou All !!