SQL

Design SQL-backed features

Design tables, write useful queries, debug slow lookups, and protect inputs with parameters. You will ship a small feature with a public repo that recruiters can inspect.

For college builders in India who can code and want an internship-ready database project.

Foundation8 lessonsAbout 34 min+100 XP

Start lesson 1

Your path

1Start hereModel one real feature4 min
2Use primary and foreign keys4 min
3Read data with SELECT4 min
4Combine data with JOINs4 min
5Summarise with GROUP BY4 min
6Find slow queries5 min
7Stop SQL injection4 min
8Ship the SQL feature repo5 min
The check10 questions · 7 to pass
Verify the SQL skill+100 XP and +50 SHARP and a certificate, once the check and the task are done