SQLD Certification Prep Course

SQLD, where should I start? For those of you feeling completely overwhelmed, this is the lecture for you. You will meet a transformed version of yourself after completing the course. SQLD All-in-One Pass!

Perfect preparation for the SQLD certification, from understanding SQL to practical function application, finishing with the latest exam questions!

How is processing big data different from processing data with Pandas? Let's learn about Spark, an essential framework for big data processing.

We introduce ways to utilize GA4 data in BigQuery. Using the GA4 BigQuery demo data from the Google Merchandise Store (https://www.googlemerchandisestore.com/) available publicly in BigQuery, we provide hands-on practice with basic SQL queries and introduce methods for marketers and planners to easily utilize GA4 BigQuery data.

Doing it carelessly is worse than not doing it at all. You'll just waste time! From now on, let's solve it thoroughly and perfectly together!

Apache Superset is an open-source BI tool that lets you quickly create charts and dashboards by connecting multiple databases. You can visualize data without knowing code, and SQL Lab allows you to run queries directly, making it useful for everyone from beginners to professionals. The dashboards you create can be shared immediately with permission settings, making it perfect for collaboration. Learning Superset gives you the ability to make data-driven decisions quickly and build practical dashboards you can use right away at work. In short, it's perfect for anyone who wants to make data "speak." 🚀

"SQLD is an exam where past questions are not officially released." Preparing for the upcoming 60th exam (2026.3.7)— Practical study material featuring 50 vividly reconstructed questions by subject and chapter, based on the latest 59th exam!

1. What kind of course is this? - It includes theory and practical exercises to prepare for the SQLP certification. - It incorporates 30 years of experience from the database field. - It faithfully captures 10 years of offline lectures from Data & People in an online format. - We are confident that it will be the best course for preparing for the SQLP certification.

SQLD Yellow Book 176 Problem-Solving Course for those who studied but can't solve problems. After completion, you'll go beyond passing to become an expert. SQLD All-in-One Pass!

A DBA instructor with 30 years of experience teaches 45 essential SQL tuning techniques that can be immediately applied in practice through real-world examples. Master the practical know-how to make slow queries 10 times faster, from execution plan analysis to index optimization and join tuning!

Skip the complex theories and concepts, and jump right into writing, practicing, and following along with SQL syntax!

Starting from installing MariaDB and understanding its structure, you will learn step-by-step from writing SQL queries and utilizing functions to joins and subqueries. You will master core practical features such as table design, performance management, backup, and recovery through hands-on practice, completing the practical skills necessary for database development and operation.

Let's understand data analysis tailored for advanced retail businesses and learn how to use the tools utilized in the industry!