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• date: 30 August 2026
• posted by: voska89

SQL Bootcamp: PostgreSQL Database, Queries, Joins, Subqueries, CTEs, Window Functions & Data Analysis

What you'll learn

⚡ Write real SQL queries using SELECT, WHERE, JOIN, and GROUP BY to analyze data like a professional data analyst
⚡ Master every SQL JOIN type — INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN, and SELF JOIN — across multiple tables
⚡ Write subqueries, CTEs (Common Table Expressions), and SQL window functions for advanced data analysis
⚡ Design PostgreSQL databases with correct data types, constraints, primary keys, and foreign keys
⚡ Use SQL aggregate functions — COUNT, SUM, AVG, GROUP BY, HAVING — to build real business reports
⚡ Manage database users, roles, and permissions using GRANT and REVOKE for real-world SQL security
⚡ Complete a full SQL final project analyzing a real 16-table business database from scratch
⚡ Confidently answer SQL interview questions and explain query logic like a working data analyst

Requirements

❗ No prior SQL, database, or programming experience needed — this SQL course teaches everything from scratch
❗ A computer with internet access to install free PostgreSQL and pgAdmin software (Windows, Mac, or Linux)
❗ Basic computer literacy — if you can use a spreadsheet, you're ready to learn SQL

Description

Learn SQL and PostgreSQL from zero to job-ready. This complete SQL bootcamp teaches real database skills through hands-on practice with a genuine 16-table business database — not disconnected examples.
SQL is the most in-demand database language in the world, and PostgreSQL is one of the fastest-growing databases used by companies today. This course takes you from your very first SQL query to advanced database design, real business reporting, and a complete final project.
What you'll master
✅ SQL Basics — SELECT, WHERE, filtering, and sorting queries
✅ Aggregate Functions — COUNT, SUM, AVG, GROUP BY, HAVING for real reporting
✅ CASE Statements, String Functions & Date Functions
✅ SQL Joins — INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN, SELF JOIN
✅ Subqueries & Set Operators — UNION, INTERSECT, EXCEPT
✅ CTEs (Common Table Expressions) for clean, readable SQL
✅ Window Functions — RANK, running totals, moving averages
✅ Database Design — data types, constraints, primary keys, foreign keys
✅ Views, Indexes & query performance
✅ Database Administration — users, roles, GRANT, REVOKE
✅ A real SQL final project combining every skill
This SQL course uses genuine PostgreSQL and pgAdmin — the same database tools used by real companies — not a simplified sandbox. Every lecture includes hands-on SQL coding exercises with checked solutions, plus AI role-play interview practice so you can explain SQL concepts confidently in a real technical interview.
Perfect for
✅ Complete beginners with zero SQL or database experience
✅ Excel users moving into data analysis
✅ Aspiring data analysts, data scientists, and backend developers
✅ Anyone preparing for a SQL interview or SQL certification
By the end of this SQL bootcamp, you'll have built and queried a real relational database from scratch, written production-style SQL queries, and completed a genuine data analysis project you can showcase in interviews.
Enroll now and start writing real SQL today.

Who this course is for

⭐ Complete beginners who want to learn SQL and PostgreSQL from zero, with no prior database experience
⭐ Excel users and analysts ready to move into real SQL-based data analysis
⭐ Aspiring data analysts, data scientists, and business intelligence professionals
⭐ Backend, full-stack, and software developers who need real SQL and database skills
⭐ Anyone preparing for a SQL interview, SQL certification, or data analyst job role

Homepage

https://www.udemy.com/course/sql-course-complete

   
   
   

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