In the library context, a database generally refers to a set of organised information or data that is searchable and is usually collated based on topics, subjects/disciplines or geographical regions. They are specialised search tools that find discipline-based, multidisciplinary and scholarly information. Full-text journal databases like JSTOR allows you to find scholarly publications which have undergone the process of peer review.
The ANU Library has some helpful research tips to help you quickly find quality resources for your assignments.
A multidisciplinary database which provides access to 28 of ProQuest's databases, with a variety of content across more than 160 subjects including business, social science, arts and humanities, and international news from 1905 to the present. Includes abstract, index, and full text articles.