Database systems manage large amounts of structured data on storage media. With the help of special query languages, information can be retrieved, changed or linked to the content of other databases. In many cases, SQL (Standard Query Language) is used as the standard query language. A DB usually contains a large number of tables together with a collection of operations that can be used to extend, link or delete the tables or to find and change individual entries using predefined column values as search keys. The DB is the central location for the secure storage of all data in a warehouse management system (usually on a server).
In logistics, e.g. in inventory management, mostly relational, increasingly object-oriented DBs are used. DB systems can be organized centrally or distributed.

Source: logipedia / Fraunhofer IML