Khóa Học SQL Toàn Diện: Từ Cơ Bản Đến Nâng Cao

Complete SQL Master Course – Learn SQL the Right Way

SQL is one of the most in-demand technical skills in data analytics, backend development, business intelligence, and database management. Whether you're a student, working professional, developer, or aspiring data analyst, mastering SQL is essential.

This course is a complete, structured SQL bootcamp designed to take you from absolute beginner to advanced query writing using real-world databases and practical business scenarios.

You’ll start with database fundamentals and SQL basics, then progressively move into advanced topics including:

· SELECT statements and query execution flow

· WHERE clauses and filtering techniques

· GROUP BY & HAVING with aggregate functions

· All types of JOINS (INNER, LEFT, RIGHT, FULL, SELF, CROSS)
CASE WHEN logic

· Subqueries in SELECT, WHERE, HAVING & FROM

· Advanced Window Functions (ROW_NUMBER, RANK, DENSE_RANK, LAG, LEAD, NTILE)

· Common Table Expressions (CTE) & Recursive CTE

· Views and CTAS

· Data Definition Language (DDL) and Data Manipulation Language (DML)

· Stored Procedures

You’ll work with multiple practical databases including:

• CompanyDB (enterprise structure)
• eCommerceDB (transactional system)
• WebFlix database (advanced analytical queries)

Each section includes notes, quizzes, labs, and coding exercises to reinforce learning and build real confidence.

By the end of this course, you will confidently write complex SQL queries, understand database structure, and solve real-world data problems — making you interview-ready and job-ready.