Which Replicat parameter is used when looking up table definitions in a file?

Explanation:
Use the SOURCEDEFS parameter to specify the name of a file on the target system or on an intermediary system that contains definitions of the source tables. Source definitions are required when using GoldenGate in a heterogeneous synchronization environment, where source and target table structures are different. To generate the source-definitions file, use the DEFGEN utility. Transfer the file to the intermediary or target system before starting the data pump or Replicat.
You can have multiple SOURCEDEFS statements in the parameter file if more than one source-definitions file will be used, for example if each SOURCEDEFS file holds the definitions for a distinct application.