Your first step to mastering SQL — If I had to start over my data science journey, I would learn SQL first. I’m not a big fan of SQL, but most likely you will need SQL to pass the data science/analyst interview and regardless of your job title, you will use SQL quite often to create queries…

Read this if you struggle to remember technical things. — In a previous article, I shared self-study tips to learn technical things, but what about retention? At the end of the day, if you don’t retain enough information, you’d struggle to learn new things no matter how many hours you study. To learn new things what we usually do is…

Don’t stick to a bad course you purchased anymore, but jump around between courses to find the best course for you (or supplement your learning). — There are thousands of online courses on the internet about almost any topic you can imagine. The problem is that it’s hard to choose the course that has the best instructors, materials, and content. You can’t judge a course by its cover. You can’t predict how good or bad a…

R Core programming concepts for data science explained with code — If you’re interested in learning data science, you should learn R. R is a programming language that excels at statistical analysis and visualizations. But that’s not all! With R, we can do data analysis, apply machine learning algorithms, and do many other data science tasks we would do with other…

A simple guide to SQLite in Python. — Believe it or not, the moment you installed Python on your computer, you also installed other wonderful tools. One of them is SQLite. SQLite is an embedded, file-based relational database management system (RDBMS) that can be used in our Python applications without having to install any additional software. …

And free resources to learn them on your own. — There’s no perfect data science course in this world, but do you know what most of them don’t teach you? The not-so-obvious skills and tools you’ll need at work! Most data science courses are great to get you started with a programming language and refresh the knowledge of maths and…

Here’s everything you need to know about databases — No matter what your job is probably you’ve ever heard of the word database. Companies out there use different types of databases to store all the information they collected throughout the years. …

Both are good for data science, but what’s the most suitable option for you? — Yes, both Python and R are good options for data science, but they have their pros and cons. This means that If you’re new to data science, one option might be more suitable than the other and if you already know one of them, learning the other might still be…

Move from nooby to advanced Python programmer. — If you’ve already mastered the basics of Python, know how to automate stuff, and are able to do simple tasks at work, but still feel you could do more, it’s time to take your Python skills to the next level. Probably your current Python skills are enough for your personal…