Free Udemy Course 2025: The Complete SQL Bootcamp : From Basics to Advanced

The complete SQL course from Basics to Advanced— built by a real data professional.This is your SQL course with real world practical examples.This is a  hands-on SQL bootcamp where you’ll not only learn how to write SQL — you’ll actually see how SQL works behind the scenes and-pratically explained to help you truly understand each concept at its core.Whether you're an absolute beginner or someone looking to level up, this course is designed to take you from zero to hero in SQL.If you’ve never written a line of SQL, don’t worry - everything is explained from scratch, step by step. You’re not too old or too young — SQL is one of the easiest and most rewarding skills you can learn.What makes this course truly unique:All complex SQL concepts made easy to understandReal-world projects based on tasksCovers everything in SQL — from the absolute basics to advanced topics like Window Functions, CTEs, Query Optimization, SQL Warehousing, and Advanced AnalyticsPractice with real scenarios to go from beginner to job-ready with confidenceTopics covered in this complete course :Introduction: Learn what SQL is, why it matters, how databases work, and how to set up your full SQL environment.Querying Data (SELECT): Master SELECT, FROM, WHERE, GROUP BY, HAVING, ORDER BY, DISTINCT, TOP, and query execution order.Data Definition (DDL): Create, modify, and remove database objects using CREATE, ALTER, and DROP commands.Data Manipulation (DML): Add, update, and delete records using INSERT, UPDATE, and DELETE with real-world logic.Filtering Data: Use comparison and logical operators like AND, OR, NOT, BETWEEN, IN, and LIKE to filter data effectively.Combining Data: Join and merge tables using INNER, LEFT, RIGHT, FULL, CROSS joins and SET operations like UNION, INTERSECT.Row-Level Functions: Use string, numeric, date, null-handling functions, and CASE expressions to transform your data.Aggregation & Analytics: Apply aggregate functions and advanced window functions like RANK, DENSE_RANK, LAG, and LEAD.Advanced SQL Techniques: Work with subqueries, CTEs (recursive and non-recursive), views, temp tables, procedures, and triggers.Performance Optimization: Improve query speed using indexes, partitions, and practical performance tips.AI & SQL: Use ChatGPT and GitHub Copilot to generate, explain, optimize, and debug SQL — plus translate and document code.Hands-On Projects for Real Experience:This course is packed with practical projects so you can immediately apply your new skills in real-world scenarios. Each project is designed to mirror actual work done by professionals:SQL Data Warehouse: Design and implement a full-scale SQL data warehouse from scratch, just like you would in a real enterprise environment.SQL for Data Analysis (EDA): Use SQL to perform exploratory data analysis on real datasets, extracting insights and creating reports as a data analyst would.Advanced Query Optimization: Tackle complex query challenges and practice performance tuning on large datasets to simulate high-pressure, real-world scenarios.The goal of this course is to help you understand SQL concepts and how to apply them in real projects, regardless of the specific database.By completing these projects, you'll translate theory into practice. You’ll not only reinforce your learning, but also build a portfolio of job-ready examples to show future employers.Don't miss out on the chance to master SQL, the skill that will set you apart in the job market and propel your career to new heights. Enroll now and unlock the potential of your data with SQL expertise!