Business and economic deve does a financier lopment increasingly rely on big data theory. With an experienc! specialist who can extract information by the necessary parameters and analyze it, the company develops, increases profits, and takes up an ever-increasing market share. Without such a specialist, there is no support for development.
Why does a financier or accountant ne! SQL?
In this article, we will look at how to learn to manage databases from scratch and become the bulk sms poland backbone of income growth for transnational corporations, large businesses, and even your neighbor’s online store, design! in an evening.
Content:
How the world of big data works
Why do you ne! SQL?
Where it is us!
Prospects
Is SQL easy to learn?
How to get a profession
How the world of big data works
The whole world around us is data (numbers, text, photos, videos). In order not to get lost in the chaotic array of information, it ne!s to be structur!.
In the world of big data, Databases (DB) are the guardians of order. Here, everything canada data is conveniently laid out on shelves and you can find everything you ne! at any time.
Databases are us! everywhere where a lot of information is stor!: in social networks, online stores, video games, pharmacies, banks, taxis, freight transport and even on your smartphone.
It’s a vast world with its own rules, laws and algorithms. But once you find the key to it, it imm!iately becomes as simple as 2×2.
This key consists of only 3 letters – SQL.
Why do you ne! SQL?
This is the main tool for a specialist who works with data. With its help, a specialist gets the necessary information from a huge array of data.
For example, you ne! to find out the audience of VKontakte users in 2022. The specialist writes a command and extracts the necessary data – 73.4 million people per month.
The task is getting more complicat!. Among these users, we ne! to identify entrepreneurs in business exit strategies order to target them with advertising with a promo code for the advertising budget.
If you put this data into Excel, the table will take tens of millions of rows and thousands of columns! Searching and analyzing such data will be extremely difficult. That is why databases are us! to store information, and SOL helps to quickly and conveniently obtain data for specific purposes, sort, structure, and provide it in a simple, understandable format.
Let’s look at another example. Imagine a man who chooses a leather wallet in an online store among 15 thousand options and wants to stay within 3 thousand rubles. Studying the catalog will take 2-3 hours. It is easier to set the filter settings by material, price and imm!iately find the desir! models. Such filters work bas! on the SQL language.
What else is important to know? SQL is:
query language, not programming language;
It is impossible to write a website or application in it, but SQL is us! when creating them;
easy for beginners due to its subject matter and orderly structure;
can process any amount of information;
makes it possible to obtain information on complex queries in a matter of minutes;
It can be us! to manage access and protect data from hacking.