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New Vertabelo Academy Course on Data Visualization: Share Your Insights With Everyone!

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In today’s data-driven world, a good visualization goes a long way in helping people make sense of numbers. Every day at the office, we’re working hard to create programming and data science content that is accessible to everyone. We aim to produce content that is easy to understand, primarily for people with no IT background. And you know what? Ironically, this stuff ain’t easy even if you’re an IT specialist! We seek metaphors and real-life applications; we share our experience

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They say that if you do what you love, you’ll never work a day in your life. At Vertabelo Academy, we strongly believe in this adage. We’re creating courses because it’s what we enjoy doing. We’re passionate about SQL and data science, and we want to deliver the best content possible in these domains. To that end, we provide our users with practical modules because learning by doing is the best way to master a new skill. Vertabelo Academy students

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Who Loves Whom?

Just in time for Valentine’s Day, we discover which of Gary and Sara’s friends are in love – and how to use the SQL JOIN statement to work with data in multiple tables! Did you know SQL is a matchmaker? That’s right; it loves to make data couples by linking information from two (or more!) tables using the JOIN statement. However, many SQL rookies run into problems using JOIN. So let’s go to a party and learn how to use

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How to Deal with Unwanted Characters in SQL

Unwanted characters in text data can be a bit of a pain, but there’s an easy way to fix them! Sometimes, we’ll find extra characters inside our string data because our SQL queries didn’t work as expected. Moreover, these extra characters may sometimes be invisible, which really complicates things. In this article, we’ll examine some string-related SQL functions that can handle unwanted characters—visible or not! The Importance of Standardizing Strings in Your Database When we work with data populated or

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How to Solve Capitalization Data Quality Issues

Misspelled names, typos, and text data quality issues in your database? Power up your queries! Use SQL string functions to address data quality issues related to capitalization. Sometimes, our SQL queries don’t work as expected because of data quality issues. In this article, we will examine some string-related SQL functions that can correct data quality issues related to capitalization. We’ll be using PostgreSQL in our examples, but similar functions are available in most database engines. Why Standardize Strings in Your

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Introduction to ggplot2

Show, don’t tell! Share data insights in stunning color and display with ggplot2, a wonderful R package for visualizing data. Ggplot2: Grammar of Graphics The end of qualitative data analysis should be clear—beautiful data visualizations. We are visual beings, after all, and a picture tells us far more than raw numbers! Among the many visualization tools, one in particular stands out : ggplot2—a free, open-source, and easy-to-use package that has become a favorite among many R programmers. This article explains

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