Course description
This comprehensive SQL course takes you from zero to advanced proficiency in Structured Query Language the standard language used to communicate with relational databases.
You will learn how to write powerful queries to retrieve, filter, sort, and aggregate data. The course covers essential topics such as SELECT statements, JOINs, subqueries, window functions, CTEs (Common Table Expressions), data manipulation (INSERT, UPDATE, DELETE), database design, indexing, and performance optimization.Real-world business scenarios are used throughout, including sales analysis, customer segmentation, inventory management, financial reporting, and HR data analytics. You will also learn both MySQL and PostgreSQLsyntax, making you versatile across different database systems.
By the end of this course, you will be able to write complex, efficient SQL queries and work confidently as a data analyst, business intelligence professional, or database developer.
