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Globalmart: Debugging Product Insights

10 Inputs

1 Hour

Intermediate

scenario poster

Industry

e-commerce

Skills

data-wrangling

Tools

sql

Learning Objectives

Debug and fix JOIN, GROUP BY, and WHERE clause issues to ensure accurate filtering and calculations.

Demonstrate knowledge of common table expressions (CTEs) to structure and simplify complex queries.

Overview

Prerequisites

Knowledge of basic SQL concepts like SELECT, WHERE, GROUP BY, HAVING, ORDER BY, and JOIN.
Knowledge of aggregations using functions like SUM, COUNT, and AVG.
Knowledge of CTEs and subqueries for structuring and simplifying queries.