- Trending Categories
- Data Structure
- Operating System
- C Programming
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Why do we need a Database
A database is a collection of data, usually stored in electronic form. A database is typically designed so that it is easy to store and access information.
A good database is crucial to any company or organisation. This is because the database stores all the pertinent details about the company such as employee records, transactional records, salary details etc.
The various reasons a database is important are −
Manages large amounts of data
A database stores and manages a large amount of data on a daily basis. This would not be possible using any other tool such as a spreadsheet as they would simply not work.
A database is pretty accurate as it has all sorts of build in constraints, checks etc. This means that the information available in a database is guaranteed to be correct in most cases.
Easy to update data
In a database, it is easy to update data using various Data Manipulation languages (DML) available. One of these languages is SQL.
Security of data
Databases have various methods to ensure security of data. There are user logins required before accessing a database and various access specifiers. These allow only authorised users to access the database.
This is ensured in databases by using various constraints for data. Data integrity in databases makes sure that the data is accurate and consistent in a database.
Easy to research data
It is very easy to access and research data in a database. This is done using Data Query Languages (DQL) which allow searching of any data in the database and performing computations on it.
- Why do we need KDD?
- Why do we need Good Manners?
- Why do we need Computer Networks?
- Why do we need shell scripting?
- Why do we need Data Encryption?
- Why do we need a separate Data Warehouse?
- Why do we need generics in Java?
- Why do we need a wrapper class in Java?
- Why do we need inner classes in Java?
- Why do we need a pure virtual destructor in C++?
- What is BGP and why do we need it?
- Why do we need a Valuation Approach in performing Finance Functions?
- Why do we need to change the delimiter for creating a trigger?
- Why do fathers need Paternity Leave?