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Following are some reasons for the need of a database:

• Database is required for efficient and easy storage, retrieval, updation and deletion of data records.
• Once a database is created, it can be shared by many users. Hence, to share data with many applications a database is required.
• Interrelated data should be grouped in one named storage area for easy access. This storage area may be physical or logical which resides in computer.
• For avoiding unnecessary repetition of data values, checking correctness of data by applying some validation rule, and searching the required information faster thus saving time and effort, etc.
• Database is required for flexibility, i.e., as and when required we can connect the database with different front-ends.
• Database is needed for storing high volume and complex data, such as documents files, photographs or images, multimedia data, mobile user’s data, audio and video files.
• For managing multi-dimensional data.
• Database is required for proper transaction management or transaction handling.

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