Figure 3-3 shows the Database Navigator, Structure window, and main editing area, which display a list of all the elements of the object being edited in JDeveloper. In this image, it shows the structure of the Employees table, which is selected in the Database Navigator. The Structure window is situated below the Database Navigator on the left hand side of the JDeveloper UI. Also, you can see the table definition in the main editing area of JDeveloper, in the center of the screen. This information includes details about the primary keys, column data types, and size.