A database management system is a set of software programs that allows users to create, edit and update data in database files, store and retrieve data from those database files. Data in a database can be added, deleted, changed, sorted or searched all using a DBMS. For example: If you were an employee in a large organization, the information about you would likely be stored in different files that are linked together. One file about you would pertain to your skills and abilities, another file to your income text status, another to your home, office address, telephone number and another to your annual performance ratings. By cross-referencing these files, someone could change a person's address in one file and it would automatically be reflected in all the other files.
DBMS are commonly used to manage:
- Membership and subscription mailing lists
- Accounting and book keeping information
- The data obtained from scientific research
- Customer information
- Inventory information
- Personal records
- Library information
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