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This course uses practical tasks and interactive lessons to guide you from complete beginner to a SQL expert. In this course, you will learn how to understand, write and optimize SQL queries with PostgreSQL, considered a popular and advanced open-source relational database system. The course guides you through the fundamentals of databases and then gradually introduces increasingly complicated queries, data aggregation techniques and database administration procedures. As this course emphasizes practical learning over theory so, you will work on projects that are based on genuine business scenarios, gaining important expertise with huge databases, problem-solving and decision-making based on data.
Topics Covered:
- Introduction to databases and SQL and setting up PostgreSQL and using pgAdmin.
- Writing basic SQL queries (SELECT, FROM, WHERE) and then advanced SQL commands for filtering, sorting and using comparison operators.
- Joining multiple tables using INNER, LEFT, RIGHT and FULL JOINs.
- Creating and modifying tables.
- Inserting, updating and deleting records.
- Working with date and time data.
- Using subqueries and nested statements.
- Applying window functions and analytical queries.
- Building reports and data summaries.
Who Would Benefit from This Course?
- Absolute Beginners looking to start a career in data analytics, database management or software development
- Data analysts who want to strengthen their SQL skills
- Business analysts and marketers aiming to make better data-driven decisions
- Developers who interact with databases in backend systems
- Students studying computer science, IT or business-related fields
Why Take This Course?
SQL is a fundamental expertise in many fields, including technology, banking, healthcare and e-commerce. SQL is essential for evaluating client activity, creating business reports and powering backend systems. This course not only covers SQL basics, but it also helps you develop confidence by working on actual data difficulties. By the end of this course, you will be able to design efficient queries, join many tables and extract important information, all of which are skills that companies generally seek.
