SQL · Intermediate

SQL for Analysis

CTEs, the join that quietly double-counts and window functions on the shop, then dates and period-over-period change on two years of store sales.

1 h4 of 4 lessons live4 coding challenges

Curriculum

2 modules, 4 lessons, built to be done in order.

01AnalysisBuild in steps, check the grain, then window.2 lessons

02Over timeBucket dates, fill the gaps, compare periods fairly.2 lessons