What Does Data Bank Mean?
A data bank is a well-organized and maintained collection of data for easy consultation and use. This data repository is made accessible on local and remote servers, and can contain information about a single, dedicated subject or multiple subjects in a well-organized manner.
Techopedia Explains Data Bank
A data bank is a repository of information on one or more subjects for easy and quick retrieval whenever needed. This data could be the credit card transactions of customers for a business or the database of a company where a large number of queries are filed daily on a daily basis.
There are also a number of online data banks that collect information on various subjects, and are available for public search.