To change databases, select the name of the database you are searching, which appears above the search box.

You can then choose a database from the list and use the Select option to access it.
It is possible to select and search more than one database at the same time. However, doing this will disable the thesaurus feature and so it is not advised for comprehensive or systematic searching.
Note that if you access Business Source Ultimate or EconLit by using the Change database option, you will access those databases with the standard interface. You may prefer to access them using the Business Searching Interface. Please see the Searching Business Source Ultimate and EconLit page for more information.