How to set up the opera browser. How to set up opera on a computer

 The process of installing the Opera browser on a Windows computer is quite simple, but for those who are used to learning how to do something first, and only then do it, in this article we will look at how to install the Opera browser on a computer. To do this, you need to download the official version of the Opera browser (how to do this is described in detail in → this article). Then double-click on the downloaded file with the left mouse button. This will start the process of installing Opera on your computer. Starting the installation process of Opera on your computer For security reasons, when installing new programs on a computer, you need to confirm that this is done in a sober mind and solid memory. Therefore, this window will appear first: Starting the installation process of Opera on your computer It asks: "Run this file?". If this is indeed an Opera installation file downloaded from the official site, as described by the link in the introduction to this article, t

What is this rating based on?

 




Some rankings are based on the frequency of mentions in search engine queries, ie. if people are more likely to search for information on the database on the Internet, then we can conclude that this database is popular. And some are guided by the number of questions asked on a specific database in specialized forums, i.e. if more questions are asked about working with a particular database, it means that a lot of people use it, and it is popular.

In any case, such ratings, as, indeed, the ratings of programming languages, do not reflect the exact actual popularity of a particular DBMS, since they are based on some one indicator. And as a result, the ratings simply contradict each other.

However, if we analyze all the sources, we can identify several databases that are most often found in the top of each rating, especially since the composition of the TOP databases in all ratings is approximately the same, only the positions of the DBMS are different.

Based on all these sources, it can be concluded that certain databases are indeed popular by all indicators, and not just by any one.

Thus, in order to simplify your task in analyzing all the necessary information, this material presents the TOP 5 DBMS, which is based on data from all popular official ratings and indicators for the previous year.

Data sources (official indicators and DBMS ratings):

PYPL (PopularitY of Programming Language) - the rating is based on data from the Google search engine;
Stack Overflow - based on the number of questions related to the database;
DB-Engines - this rating is based on many indicators:
Data from search engines Google, Bing and Yandex;
Number of questions on Stack Overflow and DBA Stack Exchange;
The number of job offers on Indeed and Simply Hired that mention the system;
The number of profiles on professional networks LinkedIn and Upwork that mention the system;
The number of mentions on Twitter.
Among other things, data from RUSSOFT was taken into account, which conducted special surveys of software companies about the programming tools used, and in particular the DBMS.