Update the columns at run time if you expect small changes to the target columns. When you get the data object columns from the data source at run time, the Data Integration Service creates a run-time instance of the data object based on the structure of the target. It does not update metadata in the Model repository. To view the run-time instance of the data object in the Developer tool, view the mapping with resolved parameters.

Configure this functionality on the

Data Object

tab of the Write transformation for relational targets.