A condition in which rules are imposed to ensure that data is more likely to be correct. These rules may include links to related database tables, non-duplicate record keys, or detailed conditions related to the type of data being stored. The assurance that unintended changes are not made to data. The storage of duplicate data. Data redundancy is often unnecessary but is sometimes useful or essential.
Relational databases help reduce the unnecessary replication of data.
Unique keys in each database table are used to link tables of data belonging to specific records or entries in the database. Networks help reduce the need for duplicate data by permitting the sharing of data. DBMS Database management system. A program that sorts, links and otherwise organizes and manages data in a database. DBMS may also assist in the analysis of data and the preparation of reports.