) and select the data source that you want to change. On the Options tab, select the Auto sync checkbox under Introspection.Database state synchronization
To synchronize the database state automatically, in the Database Explorer (View | Tool Windows | Database Explorer), click the Data Source Properties button () and select the data source that you want to change. On the Options tab, select the Auto sync checkbox under Introspection.
If the Auto sync checkbox is cleared, the view of the data source in the Database Explorer (View | Tool Windows | Database Explorer) is synchronized with the actual state of the database only when you click the Refresh icon 
or press &shortcut:Refresh;.