JOINS Foundations: The AS PostgreSQL Statement
Intro to JOINS: the AS PostgreSQL Statement What’s up SQL people? We’re back, and better than ever, in our foray to learn PostgreSQL. Since we’ve completed some intermediate skills challenges & learned GROUP BY, it’s time to examine JOINS. Before we examine JOINS, there’s a key foundation piece we must cover first: the AS statement […]
PostgreSQL Intermediate Skills Test
Hey there, SQL-ites. Time for another (yes, another!) PostgreSQL skills challenge. It’s our last stop before moving into more intermediate and advanced PostgreSQL skills, such as JOINS. If you’re just joining this series on SQL, we previously covered the HAVING statement & GROUP BY. Here’s the home page of our journey in learning PostgreSQL. Today, we […]
The HAVING Clause in PostgreSQL
Howdy SQL-ites! Welcome back to our next step in learning SQL. After a long hiatus, we recently stumbled our way through some intermediate SQL statement challenges, namely on GROUP BY. Today, we’re back in the flow, and learning about the HAVING clause in PostgreSQL. About the HAVING Clause in PostgreSQL The HAVING clause is most […]
What is Data Science?
Welcome back, campers! It’s been a minute (read:months) since I’ve last posted, and we’re back! (For now.) Today’s topic, data science: supposedly the latest exploding field, critical to every enterprise. Why is it important and relevant? The rise of big data has created a relatively untapped treasure trove of insight. However, it’s undeveloped! Further, the […]
GROUP BY SQL Statement
Introducing the GROUP BY SQL Statement in PostgreSQL ‘Ello SQL geeks! Welcome back to our SQL learning journey. We left off with a beginner SQL skills challenge and the aggregate SQL functions: MIN, MAX, AVG and SUM. Today we’re looking at the GROUP BY statement. We’ll learn about this function in PostgreSQL and walk through […]
SQL Aggregate Functions: Min, Max, Avg and Sum
Welcome back, SQL nerds! We’re back in action on the journey of learning SQL, after a beginner PostgreSQL skills challenge. We’re reaching the end of basic functions and queries with this article. Based on what we’ve learned so far, we can do basic counting, filtering, sorting and pattern matching against PostgreSQL databases. If you’re just […]
Beginner SQL Skills Challenge!
Howdy, SQL geeks. Hope this post finds you swell! Over the past few months, we’ve gained a ton of ground in learning SQL, or at least I have. 🙂 Let’s take a moment to: Test our knowledge of SQL skills learned thus far Start seeing SQL queries less as statements of code, and more as […]
Unsupervised Learning Introduction: Machine Learning Essentials
Howdy, machine learning students! Today we’re going to introduce the concept of unsupervised machine learning algorithms. Quick Recap: Supervised Learning Before we jump in, let’s quickly recap our last article introducing supervised machine learning algorithms. This will give us the appropriate context for unsupervised learning. In supervised machine learning problems, we supply pre-labeled data to […]
Building an Interactive Quiz Alexa Skill, Part 1
Hello Alexa geeks! Welcome back to our journey of learning how to develop Amazon Alexa Skills for the Echo and more. Last time, we completed the build process for our first simple “fact-dispensing” Alexa Skill. In this article, we’ll start the process for a skill that accepts user input in the form of a quiz, […]
Getting Started with Alexa Development 02: Signing Up to Alexa Development Portal
Welcome back to our journey in learning how to program Amazon Alexa Skills via Echo voice search. In the previous article, we walked through the process of setting up an Amazon Web Services (AWS) account. Today, we’ll set up an account at the Alexa Development portal, a distinct entity from the AWS portal. Without […]