Data surrounds us everywhere. They come through the media, expect us at the workplace, in public transport, even in the kitchen. Since every modern person is constantly confronted with a huge amount of information, he has to perform various actions with it: accumulate and store, select the most necessary, sort and organize in other ways, delete. To automate the entire process, and databases have been developed. From the considered point of view, a DBMS is a system for organizing data.
What is a database?
A database is considered to be some sorted array of information. An example of such a sorted database is a library. In it, books are usually arranged in a certain order: by name, by author, or depending on the subject. Traditionally, for the convenience of presenting data, a table form is used. In its cells are numbers, text, images and other elements. And the columns and rows contain some features by which ordering occurs. A very important problem for the correct construction of the database is the clarification of sets of features that are common to a particular subject area. It is depending on the meaning of these signs that instances of each particular entity are separated.
What is a DBMS?
A DBMS is some kind of database management system. The fact is that data is not easy to obtain; it is necessary to constantly perform certain operations on them. First of all, the available ordered information needs to be saved. And in the future, it is necessary to obtain as quickly as possible exactly the data that the user needs at this particular moment in the current situation. To do this, the control system must have a certain set of sorting algorithms, as well as the ability to apply a variety of filters. Then the data must be added, deleted, modified, and so on. For the convenience of operating with various information, it is necessary that such a system also gives users the opportunity to build a query to select a certain array, "know how" to perform these queries quite quickly and stably. With the correct construction of the DBMS, this provides everything, and also makes it possible to secure data from unauthorized access and implements other required functions.
Why do I need a Mysql DBMS?
Mysql is a relational database management system. Relational databases are those in which information is presented in the form of separate tables that are interconnected and interdependent. This differs from other DBMSs in some basic features, namely:
- multithreading, that is, several requests can be executed simultaneously in this system;
- simplicity of building a server;
- a reliable security system, including a flexible structure of passwords and rights;
- the ability to use data of both fixed and variable lengths;
- high-quality storage system based on streams;
- The ability to place up to 16 keys in the table.
There are also other important differences, for example, that the DBMS contains a utility for repairing tables.
Mysql, like a DBMS, is a convenient and logical system that allows you to perform all necessary operations on data.