Hypertext is another alternative concept in database design. In Hypertext database, any object, be it text or a picture, can be linked to any other object. Hypertext databases are particularly useful for organizing large amounts of disparate information, but they are not designed for numerical analysis.
Data is organized into rows, columns and tables, and it is distributed to make it easier to find relevant information. This data can be updated, expanded and deleted as the new information is added. Databases process are worked to create and update themselves, querying the data they contain and running applications against it.
To access information from a Database, you need to have a Database Management System (DBMS)
A Database Management System is a collection of programs that enables you to enter, organize, and select data in a database.However, the term database is used as shorthand for database management system. There are different types of Database Management systems, ranging from small systems that run on personal computers to huge systems that run on mainframes.
Computer databases contain aggregations of data records or files like sales transactions, product catalogs and inventories, and customer profiles.
A database manager provides users with the ability to control read and write access, specify report generation and analyze usage. Some databases offer ACID (atomicity, consistency, isolation and durability) compliance to guarantee that data is consistent and that transactions are complete.