Databases, caching & messaging
Learn SQL — free and paid courses, roadmaps
This page brings together everything CodeWithJay has published on SQL: 8 mini courses and 1 free video. Every item is taught through real projects rather than slides, so you can start with the free lessons, see how SQL is used in practice, and move on to a structured course when you are ready.
SQL mini courses
Short, free lessons on one SQL idea at a time.
FreeDon't build indexes without watching this #sql #coding #development
1 short
FreeStop wasting time adding useless indexes #sql #coding
1 short
FreeYour One List Query Is Really 201 Queries
1 short
FreeYour Query Plan Flipped. Your p99 Fell Off a Cliff.
1 short
FreeHow databases find data instantly 🔍 #tech #coding #programming
1 short
FreeDon't fall for the N+1 query trap #programming #devlife #softwareengineer
1 short
FreeFramework vs. Database: Which one wins? #coding #softwareengineering #dev
1 short
FreeThe context mistake every Go developer makes #golang #tutorial
1 short
Free SQL video tutorials
Full-length free lessons from the CodeWithJay YouTube channel.
SQL learning FAQ
- Can I learn SQL for free on CodeWithJay?
- Yes. CodeWithJay currently has 8 free mini courses and 1 free video lesson on SQL. Free courses need only a free account; mini courses and videos need no account at all.
Looking for something else?
Browse every technology CodeWithJay teaches, or get every paid course with one membership.