When using a computer, normally we store information as a file, stored in different folders for easy searching. The way of saving a single file has its advantages and disadvantages, so people will have databases.

Currently, most computer users are using this file to store their own information, so it is the most popular way to talk about it. However, large shared data systems will have many limitations such as slow data retrieval, difficult to preserve… To overcome the above limitations, database concepts and database management system. Database was born. So what is a database? The importance of database management you should know.

What is a database?

A database is simply a collection of information organized in a certain structure that makes it easy to read information, edit, add or delete data. For example, the company’s customer list includes at least the first and last name fields, and the phone number is considered a database.

Using this database system will overcome the disadvantages of individual file storage:

Reduce duplication of information, ensure consistency and data integrity
Allow data to be accessed in different ways, from different people and different applications
Increase the ability to share information

However, using the database management system has the following small troubles:

Must ensure the sovereignty of the data, because when used with high sharing properties
Confidentiality of information mining rights
Ensure data dispute issues when occurred
Ensure safety and integrity of data

In daily life, you probably use it through Database systems but you don’t know. For example, every day you read news articles from newspapers, each site uses a data storage system and when you visit, the system will return data to the browser screen for you to see. Obviously, you can access many pages at the same time and many people can read a page at the same time, but still ensure the data integrity is not misleading.

What is database management?

Database management system is a system designed for automatic and orderly database management. These management actions include editing, deleting, saving information, and searching (retrieving information) in a certain data group.

To put it more easily, a database management system is an automated system that helps users to control information, create, update and maintain the databases. In particular, two main components in a database management system are: Query processor (request processor) and data manager.

Importance of database management

In today’s digital era, many processes, stages or management systems are coded and operated by devices and software to help businesses achieve the best performance. On that basis, database management systems were born and played an important role in processing and controlling information sources. Specifically, the database management system has the following main functions:

Provides database creation environment

The database management system plays the role of providing users with a data definition language to describe, declare data types, and data structures.

Provides updates and data mining

Database management system provides users with data manipulation language to express requests, update operations and exploit database. Data manipulations include: Update (enter, edit, delete data), Exploit (search, export data).

Provides tools to control and control the access to the database

Providing tools to control and control the access to the database to ensure implementation of some basic requirements of the database system. Include:

Ensure security, detect and prevent illegal access.
Maintain data consistency.
Organize and control access.
Database recovery when there is a hardware or software problem.
Manage data descriptions.

Relational database

Relational database is a database in which:

Structurally

Data is stored in tables. Each table consists of rows and columns showing subject information. The columns represent the properties of the subject, the column name is usually the attribute name. Each row represents an individual, including a set of values corresponding to the columns.

In terms of data manipulation

Can update data (add, edit, delete records). Results of information search via data queries

In terms of data binding

The data in the table must satisfy several constraints, for example no two records in a table are exactly the same.

The establishment of a well-established database and system helps businesses better manage their business information and easily apply management software.

Database helps a lot in managing the data and documents on the computer. It’s easier to store and search, the more information you can store. The database can be of great help so its importance is enormous. Hopefully, the information we shared above about the database will help you.

What is a database? The importance of database management