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SQL Analytics

Write advanced SQL — window functions, CTEs, and query optimisation.

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After this skill you can…

  • Write window functions (ROW_NUMBER, LAG, LEAD)
  • Build reusable CTEs
  • Explain query plans and add indexes

Prerequisites

Watch (10 videos)

Loading Data into Google Cloud SQL
Coursera · beginner hands-on
→ Import data into Cloud SQL→ Perform basic data analysis with SQL
Analyzing Billing Data with BigQuery
Coursera · intermediate hands-on
→ Apply SQL concepts to data analysis→ Use BigQuery for data analysis and visualization
Relational Database Design – Full Course
freeCodeCamp.org · beginner hands-on
→ Write SQL queries→ Optimize database performance
The ORDER BY Statement in SQL : Data Science Code
ritvikmath · intermediate hands-on
→ Sort data using ORDER BY statement→ Analyze data with SQL
MASTER SQL Basics in 1 Video! (From Zero to Pro - Full Course: Syntax, Databases, Real Examples)
Analytics Vidhya · beginner hands-on
→ Write SQL queries→ Manage databases→ Analyze data with SQL
Analyzing Big Data with SQL
Coursera · beginner hands-on
→ Write SQL queries for big data→ Optimize SQL queries for performance
SQL for Software Developers
Coursera · advanced hands-on
→ Optimize database performance→ Write complex SQL queries
Data Manipulation and Transactions in SQL Server
Coursera · intermediate hands-on
→ Modify database contents using SQL statements→ Implement transaction control mechanisms
The WHERE Statement in SQL : Data Science Code
ritvikmath · intermediate hands-on
→ Use the WHERE statement to subset data→ Apply SQL for data analysis
Intermediate PostgreSQL
Coursera · beginner hands-on
→ Perform advanced SQL queries in PostgreSQL→ Optimize database performance with indexing→ Manage database transactions

Read (10 articles)

📄
Applying SQL Concepts: DDL, DML, Filtering, and Data Transformation
Dev.to · Sharon-nyabuto · 2026-04-12
📄
Practical SQL Concepts
Dev.to · Alex Waiganjo · 2026-04-12
📄
CTEs, Subqueries, and Query Optimisation in SQL
Dev.to · Joan Wambui · 2026-04-21
📄
Understanding SQL: DDL, DML, and Data Transformation
Dev.to · Victor Karanja · 2026-04-24
📄
Microsoft Data Engineering Interview Questions & Prep
Dev.to · Gowtham Potureddi · 2026-04-27