You can parameterize or specify values for the default scale, precision, and data type of the additional columns from the control file in the run-time properties of the flat file data object. You can parameterize the control file name and the control file directory in the run-time properties of the flat file data object. Configure the parameters on the Advanced tab of the physical data object properties. When you create the transformation from the physical data object, you can use mapping parameters to override the parameter default values.