SQL Zero to Hero — Learning Log

Practicing the "Zero to Hero" SQL course in SSMS, one script per unit. Hand notes are photographed/summarized alongside each unit's queries.

Progress

Unit	Topic	Status
01	01-introduction and basics	✅
02	Combined above	✅
03	03-data-definition-ddl	✅
04	04-data-manipulation-dml	✅
05	05-filtering-data	✅
06	06-combining-data	✅
07	07-row-level-functions	✅
08	08-aggregation-analytical-functions	✅
09	09-advanced-sql-techniques	✅
10	10-performance-optimization	✅

Legend: ⬜ not started · 🔄 in progress · ✅ done

Structure

Each unit-XX/ folder contains:

• unit-XX.sql — practice queries with inline comments

Hand-written notes are photographed and dropped into the same folder when useful.