Lesson 13.4 · Pro
Quick reference: all the tricks
Every pattern from the course in one list, each with a link back to its lesson.
In this lesson
- NULLs and counting
- Grouping, rates and conditions
- Joins and CTEs
- Dates and text
- Windows and statistics
- Interview patterns
Go Pro to read this lesson
Pro unlocks every lesson and practice problem in SQL, Python, pandas and NumPy, with answers and step-by-step explanations.