The Create Synonym for relational database tables dialog box has a new update option that allows you to select which attributes should be updated from the database.
To update a synonym from the Create Synonym dialog box, select Update from the Update or Create Metadata drop-down menu. Then, select a synonym from the list and click Next.
The Update Synonyms dialog box opens, as shown in the following image.
Select the attributes that you want to override in the existing synonym and click Next.
The selected synonym will now be updated.