Database Management System is a collection of software programs that is meant for storing records in computers. This software allows accessing of data such as delete, store, retrieve etc that are available in a database. Purpose of Database Management Systems:
- During early days, for storing data a file system is used.
- In a file system, it is difficult to access data, data inconsistency, integrity and security problems etc.
- So database management system was first developed on 1960 by Charles Bachman.
- Database Management System provides many solutions for problems that are occurred in a file system.
Areas of Database Management Systems: There are many areas where Database Management Systems are used. Some of them are:
- Airlines: Used for storing information such as availability of seats, train timings etc.
- Banking: Used to store customer details, accounts, transaction etc.
- Telecommunication: For storing bills, caller names etc.
- Universities: To store students register no., marks etc.
- Human Resources: For storing employee details, salary etc.
- Sales: Helps to store customer information,
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Advantages of Database Management Systems:
- Faster access to information.
- Cost for user training is low.
- Multiple usages at a time.
- No dependence in language.
- High data security.
- Eliminates data redundancy.
- Consistency in data.
Disadvantages of Database Management Systems: There are only minor problems present in database management systems. They are:
- Slightly expensive.
- Requires trained technical employee for operation.
- Damage in database deletes all data forever.
- Data conversion is very costly and difficult.
- Organization has to spend more amounts for training a staff to operate DBMS.
The goal of database management system is to offer more convenience as well as more efficiency to access data from a database with high security. Therefore, nowadays Database Management System is used in all fields for gaining more advantages.