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 | Jul 10, 2024 | Bez kategorii, Excel
Learn advanced formulas in Excel and learn how to use tricks and practical applications to improve your data analysis. Excel is a tool I use daily, both at work and in my personal life. It is an indispensable program that enables data management, report creation, and...
by Kajo Data | Jul 2, 2024 | Work
If you ever googled ‘Difficult interview questions’ or you would like to know how to talk with the recruiter, this article is for you. Today I want to focus on recruitment, specifically the tough questions that might surprise you during a job interview. I...
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...
by Kajo Data | May 23, 2024 | Work
If you ever googled ‘GPT 4o and Gemini Advanced’ or you would like to know how new AI models will change the world, this article is for you. Hello everyone! Today on the blog, I want to share my thoughts on the latest artificial intelligence models: GPT...
by Kajo Data | May 13, 2024 | Work
If you ever googled ‘Job market crisis’ or you would like to know is it difficult to get a job now, this article is for you. Today I would like to address a topic that is increasingly appearing in discussions about the job market – the crisis in the...
by Kajo Data | Apr 25, 2024 | Work
If you ever googled ‘Perfect job for introverts’ or you would like to know introverts or do data analysts need other people, this article is for you. Lately, there have been a lot of questions about working in the IT industry, especially from those who...
by Kajo Data | Apr 17, 2024 | Work
Today, I would like to talk about the current state of the IT job market in Poland. Are you considering a career switch to IT? I hope that after reading this article, you will have a clearer picture. Market Overview First, it’s important to understand that the...
by Kajo Data | Apr 15, 2024 | Work
If you ever googled ‘Why coding skills are not enough’ or you would like to know how can I work as a data analyst, this article is for you. When I first started, the world looked a bit different, and if I could, I certainly would make different decisions...
by Kajo Data | Mar 16, 2024 | Work
Hi there, I’m Kajo! I run the KajoData channel, aimed at those dreaming of a career in IT as data analysts. Today, I want to share my thoughts on a common question: “Why can’t I find a job?” and present an effective strategy for getting into...
by Kajo Data | Mar 16, 2024 | Work
Today, I want to tackle a topic that seems to go against the current in these times of constant change and the pursuit of new professional challenges. The subject is “Why you don’t need to look for a new job” and “A new job or why is it worth...
by Kajo Data | Mar 8, 2024 | AI
Hello! My name is Kajo Rudziński, and I am a data analyst by profession and an explorer of the possibilities offered by artificial intelligence by passion. Today, I would like to share with you my thoughts on the impact of AI on my life and work. The conversation...
by Kajo Data | Mar 8, 2024 | Work
Hello there, Kajo here from KajoData! In today’s blog post, I want to share with you some insights on how to change your mindset and find motivation at work, especially for those of us facing the challenges of the IT industry. Working in IT isn’t just about the...
by Kajo Data | Jan 30, 2024 | Work
If you ever googled ‘Dashboard in data analytics’ or you would like to know how to present data, this article is for you. Hi there, it’s Kajo from KajoData! Today, I’m excited to talk about a crucial aspect of data analytics: dashboards. How do...
by Kajo Data | Jan 21, 2024 | Work
Table of contentsHow to Become a Data Analyst – IntroductionLearning ExcelLearning SQL and DatabasesThe Data Analyst’s CV and LinkedIn ProfileThe Data Analyst’s Portfolio – GitHub, Tableau, PowerBIData Visualization – Tableau and Power BIThe Pareto...
by Kajo Data | Dec 28, 2023 | AI, Work
Is using ChatGPT in IT always a good thing? Can learning programming with AI hinder your career? As an enthusiast and educator in the IT world, I often ponder the impact of the latest technologies on our learning and career. Recently, I became deeply intrigued by how...
by Kajo Data | Dec 22, 2023 | Work
Hi, it’s Kajo from KajoData! As someone in the IT industry, I want to talk about something that affects many of us, whether we’re job hunting or entrenched in our careers. I’m referring to professional burnout & impostor syndrome. It’s a...
by Kajo Data | Dec 21, 2023 | Work
Hello everyone, Kajo here! As a data analyst and creator of KajoData, I often get asked: “How to rediscover lost motivation?”. Have you ever felt like you just can’t be bothered? Well, you’re not alone. Actually, motivation loss is quite...
by Kajo Data | Dec 14, 2023 | Work
Hey there, it’s Kajo from KajoData! Today, I want to talk about something we all go through – job interviews in the IT sector. I know it can be nerve-wracking – you’re facing a huge opportunity, but at the same time, you feel the weight of a...
by Kajo Data | Nov 8, 2023 | Work
Hey there! Wondering who can work as an Analyst? if data analytics is the right career path for you? Well, I might surprise you, but there isn’t one specific type of person who fits this job like a key in a lock. In fact there are only 4 traits to be a Data...
by Kajo Data | Sep 16, 2023 | Work
Hey there! If you’re looking around for a job in the IT industry and wondering whether becoming a programmer or a data analyst is the better choice, this article is for you. It seems there are two main paths you can follow, right? On one hand, you have coding...
by Kajo Data | Sep 9, 2023 | Work
Today, we’re diving into the fascinating world of money in IT. No, I won’t just be talking about programmers, because that topic has been done to death. But do you know the average BI developer salary? Exactly. Today we’re focusing on comparing the...
by Kajo Data | Aug 28, 2023 | Excel
Python in Excel? Really? 😱Is this the beginning of the end for the Excel we know? Last week, Microsoft made a groundbreaking announcement that has left many of us stunned. From now on, you’ll be able to use Python natively in Excel. Yes, you heard it...
by Kajo Data | Aug 25, 2023 | Excel
There comes a time in every Excel aficionado’s life when basic formulas and functions just don’t cut it anymore. Picture this: you have thousands of cells filled with data, and you need to do something with them—quickly and efficiently. The answer? Array formulas....
by Kajo Data | Jun 26, 2023 | Work
Notifications from Outlook, alerts on Slack, and MS Teams – things that seem so incredibly urgent that I need to check them immediately. But, you know what? I recently realized that… I don’t have to. Do you also feel that the digital era, despite its...
by Kajo Data | Jun 26, 2023 | Work
Work meetings can be a torment. You look at the clock and think: “Why am I wasting my time here?” Meetings can be a crucial element of teamwork, but on the other hand, they can turn into a gigantic black hole that consumes our most valuable resource...
by Kajo Data | Jun 20, 2023 | Statistics
Hello! Today we’re answering a question “What is a Z-score”. I other words, we’ll talk about an important aspect of statistics – standard deviations. If you’ve never heard of it before, don’t worry – this is the place...
by Kajo Data | Jun 19, 2023 | Work
IT conferences provide a great opportunity for analysts and programmers alike to gain knowledge and broaden their network. Whether you’re a junior or a senior, everyone contributes. Recently, I thought that a “guide for introverts” would be useful in...
by Kajo Data | Jun 18, 2023 | SQL
Hello! Today, I want to tackle a topic that seems to befuddle many beginner developers but is absolutely crucial in daily work with databases. I’m talking about JOIN types in SQL. And not only the basic ones – we will have a look even at cross join! A JOIN...
by Kajo Data | Jun 13, 2023 | AI
Do you ever have moments when you wonder if Chat GPT is conscious? That’s perfectly understandable. But the real question you should ask yourself is “what is the Eliza Effect” 😉. The first Eliza Effect But before we get to the heart of the matter, we...
