by Kajo Data | Aug 18, 2025 | Expert
Data engineering is one of those career paths that more and more people are aiming for when entering the world of IT. But what does a data engineer really do? What does their typical day look like? What skills are essential, and how has this role evolved in the age of...
by Kajo Data | Dec 7, 2024 | SQL
Histograms are one of the most popular tools for analyzing data distribution. While we often associate them with visual charts, their logic and analytical value can also be replicated in SQL. In this article, I’ll show you step by step how to create a simple histogram...
by Kajo Data | Dec 7, 2024 | SQL
Pivot tables are a favorite tool among analysts working in Excel. But what if your data is stored in a SQL database? Can you create something similar in SQL to analyze data in a cross-tab format? The answer is: yes! In this article, I’ll show you how to use GROUP BY...
by Kajo Data | Jul 24, 2024 | SQL
Learn advanced techniques for creating SQL queries. Practical examples and applications. SQL (Structured Query Language) is a powerful tool that allows for advanced manipulation and analysis of data in databases. As a data analyst, I use SQL daily to extract,...
by Kajo Data | Jul 16, 2024 | SQL
Learn how to get started with SQL and databases. A beginner’s guide. SQL (Structured Query Language) is a language that plays a crucial role in managing and manipulating databases. With SQL, we can create, modify, delete, and query databases, making it an...
by Kajo Data | Jun 24, 2024 | Work
If you ever googled ‘SQL for data analyst’ or you would like to know how to get the insights from the data base, this article is for you. Today, I’ll talk about the key elements of SQL for analysts and show you how to effectively extract data from a...
