Learn SQL

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1.Talk to a Table

Say “Hello” to the Table Quiz: Say “Hello” to the Table Challenge: Say “Hello” to the Table Pick the Columns You Want Quiz: Pick the Columns You Want Challenge: Pick the Columns You Want Find the Rows That Matter Quiz: Find the Rows That Matter Problem: Find the Rows That Matter Use Comparisons and Logic Quiz: Use Comparisons and Logic Problem: Use Comparisons and Logic Sort the Answers Quiz: Sort the Answers Problem: Sort the Answers Problem: Help a Pet Lover

Mock Interview

SQL Personalized Practice for Beginners

2.Ask Better Questions

Do Math with Your Data Quiz: Do Math with Your Data Problem: Do Math with Your Data Group Things Together Quiz: Group Things Together Problem: Group Things Together Only Keep Interesting Groups Quiz: Only Keep Interesting Groups Problem: Only Keep Interesting Groups Ask Questions About Questions Quiz: Ask Questions About Questions Problem: Ask Questions About Questions Project: Find the Top Performers

3.Create Your Own World

Create a Table Quiz: Create a Table Challenge: Create a Table Add Some Data Quiz: Add Some Data Problem: Add Some Data Fix Mistakes Quiz: Fix Mistakes Problem: Fix Mistakes Design Better Tables Quiz: Design Better Tables Problem: Design Better Tables Project: Build a Student Tracker

4.Connect the Dots

Meet the JOIN Family Quiz: Meet the Join Family Problem: Meet the JOIN Family Connect Two Tables Quiz: Connect Two Tables Problem: Connect Two Tables Go Multi-Level Quiz: Go Multi-Level Problem: Go Multi-Level Build a Mini Dashboard Problem: Build a Mini Dashboard Project: Library Tracker Problem: Compute Student CGPA Project: Build a Game Leaderboard

5.Learning SQL in the Age of AI

Writing Clear Prompts Reading SQL Output for Insight Planning Multi-Step Queries Safe SQL Habits and Preventing Dangerous Operations Capstone: Your Personal Budget Tracker What’s next?

Adding New Fields in a Table

Learn about adding new fields in the database.

We'll cover the following...

Adding columns to a table
Adding multiple columns in a single statement

Adding columns to a table

To comply with the newly implemented policy, our initial action is to add Quantity and Price to the SalesData table.