fe7272ae_20__Copy_data_across_databases__Description
[Parameter] -keyColumns [Description] 
Defines the key columns for the target table. This parameter is only necessary if import is running in UPDATE mode. It is ignored when specifying more than one table with the -sourceTable argument. In that case each table must have a primary key. It is assumed that the values for the key columns will never be NULL.
20. Copy data across databases
Description