When working with an Access database you're working with many Access objects simultaneously. Learn to manage them here.
It's helpful to think of your database as a large binder or folder in which you store your data. The data itself is contained in database objects. Access treats each of these objects as separate documents, which means you will have to open and save them individually in order to work with them.
You may have noticed that this lesson contains no instructions for saving a database. This is because you cannot save an entire database at once. Rather, you must individually save the objects contained within the database.
By default, the most recently opened object will appear in the main window as the current object. To view another open object, click its tab in the Document Tabs bar.
You'll need to save any changes you make to each object before closing your database. Remember, saving early and often can prevent your work from being lost. However, you will also be prompted to save any unsaved work when you attempt to close your database.
You can also close an object by right-clicking its tab on the Document Tabs bar and selecting Close. Select Close All to close all open objects.