What is database management?
In the article ahead of you, we intend to provide information in the field of database management system (DBMS). As you know, this system is provided to users in the form of software and helps them to have no problems in saving and retrieving information. In the following, you are going to read detailed and detailed information about the database management system. If you are one of those people who prefer to read specialized information in a simple and fluent way, don’t miss this article.
What is a database (DB)?
A database (DB) contains data or information that are related to each other for various reasons and placed in a partition. The design of a database system will be done in such a way that data can be categorized and analyzed for specific purposes; Therefore, collecting information is done based on different criteria. Therefore, the database has specific contacts that refer to them based on their needs.
In a way, the information databases are completely structured and organized, which are also completely similar in terms of structure. They sort the database according to certain principles. For this reason, the data that is not categorized according to certain rules is not included in the database. Another name for database is database, which is less used than database.
Database management system
What is a database management system (DBMS)?
(DBMS) stands for Database Management System. This system is called software that is used to store and retrieve user information. In fact, in the data management system, you will manage all the information and data you have accurately and with complete security. The database management system has various tools and mechanisms chinese europe phone number lead that allow people to easily store their information and finally access it when needed. The database management system is also called the interface between the database and the user, because it facilitates the activity process and provides various facilities to people.
An example of a database:
Let’s see a simple example of a university database. This database stores information about students, courses and grades in the university environment. The database is organized into five files:
STUDENT file that stores data for each student.
COURSE files that contain information about each course.
SECTION files that store information about sections in a particular period.
The GRADE file, which stores the grades received by students in different sections.
The TUTOR file, which contains information about each teacher.
Database system definition:
To define the database system, we first need to define the record structure of each file by defining the different types of data elements that should be stored in each record. Note that we can use an encoding scheme to represent the values of a data item.
History of DBMS
History of DBMS
The database management system has gone through stages in its growth and evolution, and in this section, we want to describe the historical process of this system in detail. In 1960, a database management system was designed for the first time by a person named Charles Bachmann . In 1970, after ten years of the initial design of the database management system, the Information Management System (IMS) code was introduced to users. And six years later, the institution-relationship model was invented by Peter Jenn under the title of ER model and introduced to everyone. Within a few years, the relational model became a model as an approved component in the database, and in 1985, the object-oriented database management system entered the development path.
After 5 years of development and expansion of the object-orient content management system , in 1990 the content management system was merged with the database management system. In less than a decade, in 1995, one of the most important events in the history of database management systems occurred and the first Internet database applications were launch. This classification and explanation of events in the field of database management system will help you have a clearer mindset and more accurate knowledge about this management system and software.
Database management system features
The features and capabilities of the database management system make engineers use it. In the following, we discuss the best features of DBMS:
High security for work and activity
Eliminate redundancy
The nature of the description of the database system itself
Isolation between applications and data abstraction
Types of database management systems
Support for multiple data views
Data sharing and multi-user transaction processing increase your sales with doppler
Following the concept of ACID (atomicity, consistency, isolation and persistence)
Multi-user environment support
Advantages and disadvantages of DBMS
Advantages and disadvantages of DBMS
In the following, we will talk about the advantages and disadvantages of DBMSs in detail. Knowing the advantages and disadvantages of a database management system can greatly help improve its usability.
Advantages of DBMS:
DBMS provides various techniques for storing and retrieving data.
The DBMS acts as an efficient controller to cell p data balance the needs of multiple applications using the same data.
Code programmers are never expose to the details of displaying and storing data.
DBMS uses various powerful functions to store and retrieve data efficiently.
It helps with data integrity and security.
A DBMS schedules concurrent data access in such a way that only one user can access the same data at a time.
Program development time is reduce.
Disadvantages of DBMS:
DBMS may have many advantages, but it also has certain disadvantages and defects that we will discuss below.
The cost of DBMS hardware and software is very high
Database management systems are often complex systems, so training users on how to use a DBMS is a must.
In some organizations, all data resides in a single database, which can be damage by a power failure or the database on storage media can be corrupt.
Using a program at the same time by many users sometimes leads to the loss of some data.
DBMS cannot perform complex calculations.
Advantages and disadvantages of DBMS
Examples of DBMS
Here are some of the most popular database management systems: