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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)

Converting SQL Server code to PostgreSQL
Google Cloud Tech · beginner hands-on
→ Convert SQL Server code to PostgreSQL→ Understand key differences in SQL syntax
Stop Watching SQL Tutorials (Do This Instead)
Manish Sharma · intermediate hands-on
→ Solve business problems using SQL→ Explain SQL thought process→ Handle messy data scenarios
Structured Learning | Real-World Skills | Hands-on Practice | Data Analytics | The iScale
The iScale · beginner hands-on
→ Write efficient SQL queries→ Design and implement data analytics projects
5 Steps In Data Science Interview Preparation | Data Science Interview Prep | #Shorts | #Simplilearn
Simplilearn · intermediate hands-on
→ Write SQL queries→ Optimize SQL queries→ Analyze data with SQL
Best Data Analyst Courses | Top Data Analyst Certification Courses Online | #Shorts | #Simplilearn
Simplilearn · beginner hands-on
→ Learn SQL basics→ Apply SQL to data analysis→ Use SQL for data visualization
Like Statement in PostgreSQL | Using LIKE to find Patterns
Alex The Analyst · intermediate
→ Apply SQL skills to real-world problems→ Use SQL to analyze data
Create an SQL Performance Improvement Agent
DataCamp · intermediate
→ Optimize SQL Queries→ Improve Database Performance→ Reduce Query Costs
Converting SQL Server types and rules to PostgreSQL
Google Cloud Tech · beginner hands-on
→ Migrate database schemas→ Convert SQL Server types to PostgreSQL→ Preserve data integrity
How to Learn Data Analytics in 2026 (Step-by-Step Beginner's Guide) | Intellipaat
Intellipaat · beginner hands-on
→ Write SQL queries→ Work with databases
Question #2: AI ke baad Data Analyst ka role khatam ho jayega? 🤖
Project Shift · beginner
→ Learn SQL for data analysis→ Use SQL to solve business problems

Read (10 articles)

📄
Introduction to SQL for Data Analysis
Dev.to · Mugi Mugendi · 2023-02-19
📄
Integrating Apache AGE with Business Intelligence Tools
Dev.to · Humza Tareen · 2023-07-06
📄
SQL Joins and Window Functions
Dev.to · Brian O. Njagi · 2026-03-10
📄
Basic SQL Operations (CRUD)
Dev.to · arjun · 2025-01-21
📄
Mastering SQL Cursors & Triggers in Oracle
Dev.to · Ramya · 2025-10-08
📄
tcount
Dev.to · Query Filter · 2025-10-09
📄
😱 Stop Writing Useless SQL Queries! Discover the Secret Powers of Window Functions
Dev.to · Yevhen Kozachenko 🇺🇦 · 2025-10-17
📄
🧠 SQL for Beginners: The 10 Most Common Queries Explained
Dev.to · Bantu Ngxola · 2025-10-19