Removes all elements from a dynamic ProDataSet object
including buffers and relations.
      
        Return type: LOGICAL
      
        Applies
to:
        ProDataSet object handle
      
     
    Syntax
      
      
      This method restores the state of the dynamic
ProDataSet object to what it was immediately after the CREATE DATASET
statement.
      If an error occurs while executing the CLEAR( )
method, the method returns FALSE. Otherwise, it returns TRUE.