Database plays an important role in human’s searching for a particular record. Without database, people cannot store, mutate and retrieve programs organizedly.
Database is everywhere in our daily lives: from the weather forecast to the films we watch, the database has the responsibility to utilize many services we use today. But do you know all the amazing features of it?
What is database?
A database is known as a structured collection data that is electronically stored and accessed from a system of computers. A database management system (DBMS) is a software which can interact well with the database itself, applications and users in order to capture as well as analyze the data. With DBMS, you can administer the database in your computer correctly.
What are the features and benefits of a database?
There are a wide range of characteristics and advantages of the database system. Here we will provide the most popular features so you can understand the basic information about it.
A database system is self-describing because it can not only include the database itself but also describe and define the relationships and data among tables that are contained in the database. Then, database users or DBMS software will use these kinds of information when they need them. Compared with the traditional file-based system, the database system is totally different as it can separate the information and date so well while the traditional only recognizes the data definition as a part of the programs.
- Support for various data’s views
A database can support numerous views of data. A view is a database’s subset which is dedicated and defined for some certain users. Different users will have different views about the system. And each view can contain the data of preference to a particular user or even a group of users.
- Control the data redundancy
In the approach of a database, each place in the database will store a data item. In certain situations, there still exists data redundancy which can enhance the performance of the system. However, such redundancy is kept yo minimum and controlled by app programming.
- Share data in the multiuser system
You probably know that database systems nowadays are designed for a number of different users. Thus, they let users get access to similar database at one time, leading to characteristics named concurrency control strategies. And these kinds of strategies will make sure the accessed data is correct all the time while maintaining the data integrity. If traditional database systems still contain restricted usage for a user at a time, the modern multi user one can improve the limitations so effectively.
- Enforce the integrity constraints
The DBMS can both define, enforce some constraints and remain the integrity of the data so as to ensure to always bring valid information to users. A database constraint is a rule or restriction that reads wheat can be edited or entered in a table like a postal code adding a certain city or using a valid format.
In fact, there are a variety of database constraints such as data type and data uniqueness. The former knows what kind of data is transmitted in a field while the latter makes sures that there is no duplicates can be entered. Constraints can be programming (complex) or field based (simple).
The data system can be described separately from the app program. It happens thanks to the ability of DBMS not being embedded in the program. So, all the changes in the data structure will be tackled effectively.
- Restrict the unauthorized access
It is true that there are a multitude of users in a database system, however, not all of them have the same privileges to access the same information. For instance, this user can have read-only access while others can have read, write and edit privileges. As a result, a DBMS ought to offer a security system to control different groups of user accounts as well as limit unauthorized access.
- Recovery and backup facilities
This feature will help you to save your important data from loss. The system of the database offers a distinguished process that enables a network to backup and recover data. Thus, when hard drives fail and you cannot access to the stored database on the hard drive, you can backup the data from the database. And if a computer system suddenly fails during its update process, the database will be restored right away thanks to the recovery subsystem.
A database can support numerous views of data/ Ph: svitla.com
In brief, managing information requires lots of hard work but with database management, this job is super easy. Due to a wide range of great benefits of it, you can become a strategic user of whatever kind of data you own.