[[AgustinOrtu]]

Creas una TFDConnection y luego le asignas los parametros:

Código Delphi [-]
  Connection := TFDConnection.Create(NIL);
  Connection.DriverName := 'MSSQL'; // o el que sea
  Connection.Params.Values['Database'] := ;
  Connection.Params.Values['User_Name'] := ;
  Connection.Params.Values['Password'] := ;
  Connection.Params.Values['Port'] := ;
  Connection.Params.Values['Server'] := ;
  Connection.LoginPrompt := False;