Library databases are online catalogs/indexes that contain formation about journal, magazine and newspaper articles. You can search these databases to find information about specific topics.
Databases provide citation information for each article (who wrote it, where it was published, etc.) and often include an abstract (a summary of the article). Many library databases provide full-text versions of the articles themselves.
Databases are useful for locating peer reviewed journal articles or studies. Check out the link below for additional information about the characteristics of a research article.