Articles Cookbook
10 Oct 2022
Tihomir Babic

SQL Courses for Software Testers

In this article, you will learn why software testers need SQL and which courses are ideal for them to learn it. Do software testers need SQL? Oh yes, they do! They don’t necessarily use it all the time or take advantage of all its possible features. But a tool for accessing data in a database is essential for a software tester. And SQL is exactly that: a programming language designed specifically for handling data in relational databases.
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4 Oct 2022
Himanshu Kathuria

How Much Do Business Analysts Earn?

What does a business analyst do, and why are they essential to their companies’ success? What skills do you need to become a business analyst? How much can you expect to earn? We’ll answer all those questions in this article. With our dependence on digital systems increasing by the day, IT and IT related jobs like business analysts are seeing a continuous boom in opportunities. Did you know that IDC estimates around 60% of the global GDP will be mostly impacted by the introduction of digital tools by the end 2022?
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29 Sep 2022
Ignacio L. Bisso

How the WITH Clause Works in SQL

Do you want to master complex SQL queries? Learn how to use the powerful WITH clause! In SQL, there are simple queries and complex queries. A simple query can take data from a table, apply a filter, and return the data as it is in the source table. A complex query may require complex transformations to the source data or may need to read and join data from multiple tables or views.
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27 Sep 2022
Himanshu Kathuria

SQL ORDER BY Clause with 7 Examples

Get to know the SQL ORDER BY clause! Our practical and easy examples will help you understand its syntax, common uses, and best practices. SQL or Structured Query Language lets you “talk” to a database. It enables you to create, retrieve and manipulate the data in a relational database. This language has become so ubiquitous that hardly any data-related field has been untouched by it. If you’re interested in the SQL ORDER BY clause, I’m assuming you have either already started learning SQL or are planning to start it soon.
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22 Sep 2022
Kateryna Koidan

Roadmap to Becoming a Data Analyst

What is a data analyst? What are their daily duties, and what skills do they need? In this article, I discuss the role of data analysts and share a step-by-step guide on how to become one. As organizations start to realize the value of their data on their customers, target audience, competitors, suppliers, and other market players, the role of data analysts becomes more important. To become a successful data analyst who can bring real value to the organization, you need to possess a specific set of skills.
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15 Sep 2022
Martyna Sławińska

How to Import a CSV File to a MySQL Database

CSV files store and transfer data between databases. Read on to find out how easy it is to work with CSV files in a MySQL database. CSV files are one of the oldest data exchange formats and are still heavily used by IT professionals from various domains. It is common for online data resources and different database software to offer their data uploads and downloads in CSV format. In this article, we’ll briefly review what a CSV file is and how to work with it.
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13 Sep 2022
Tihomir Babic

Top 10 MySQL Interview Questions And Answers

You learned SQL and now you want to use this valuable skill to get a better job. Now it’s time to prepare for the job interview. We’ve got ten MySQL interview questions and answers to help you with that. In today's hyperconnected world, knowing how to deal with it has become a necessary skill. That’s why you probably learned (or want to learn) SQL: either your job requires it or you realized that you need SQL to get a better job.
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8 Sep 2022
Tihomir Babic

SQL Syntax

In today’s article, we’ll give you a walkthrough of core SQL syntax with a focus on the SELECT, INSERT INTO, UPDATE, and DELETE statements. SQL is a programming language designed specifically to communicate with databases. It allows you to get the data from a database or change the data within it. Like any programming language, SQL has a syntax you must adhere to. In other words, there are rules to follow regarding its commands if you want your code to work.
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1 Sep 2022
Kateryna Koidan

Learn SQL for Data Science With LearnSQL.com

If you are interested in a data science career and have looked at a few relevant job descriptions, you've probably noticed many leading tech companies expect their data scientists to know SQL. Let's see how you can learn SQL for data science and become more valuable to any data-driven organization. A data scientist is a complex technical role that expects a combination of the skills of a statistician, a business analyst, and an IT expert.
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30 Aug 2022
Kateryna Koidan

How to Learn SQL for Marketing Analytics With LearnSQL.com

SQL is a valuable tool for any experts wanting to make data-driven decisions. Marketers are no exception. Let's explore how to design an effective learning path for SQL in marketing. SQL for marketing analytics is used to understand customers better and to increase the effectiveness of marketing campaigns. If you work in marketing and want to join other marketing experts who have already benefited from this tool, you need to learn SQL.
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