Data synchronization can not be rolled back! It may change or delete data in your target database. It is highly recommended to backup target database before synchronizing data.
To start synchronizing data of two databases:
Select data to synchronize. For this, select check boxes in the column with check boxes for the tables (or views) you want to synchronize. You may also click a separate table and select check boxes in the column with check boxes on the Only in Source, Only in Target, and Different Records tabs for individual records to determine which records to synchronize. Use the check box in the header of the grid to apply settings to all the grid rows.
Incorrectly mapped objects are displayed with icon instead of check box in the Data Comparison document. Objects with no data to synchronize (with only identical records or with no records at all) are displayed without check boxes. You cannot select them for synchronization.