To terminate sharing, first connect to the desired database (see Section Connecting to the Database). The Stop Sharing menu item in the Sharing menu or
the~ 
~ toolbar button opens a window where you can view your shared objects.
The list of shared objects is ordered by users. If you want to change the sort order, click on the desired column in the title bar of the list. The column used to order the objects in the list is not enclosed in brackets in the title bar.
To terminate object sharing, select the objects and press Stop Sharing.