Udemy - SQL Fundamentals with PostgreSQL

Learn to write SQL queries and be ready to apply your knowledge in real-world projects
What you'll learn
Understand SQL Fundamentals - Learn database concepts, PostgreSQL setup, and SQL syntax.
Create & Manage Databases - Define tables, relationships, primary/foreign keys, and constraints.
Manipulate Data - Perform INSERT, UPDATE, DELETE, and bulk data operations.
Query & Filter Data - Use SELECT, WHERE, ORDER BY, LIMIT, OFFSET, and DISTINCT.
Work with Joins - Learn INNER JOIN, LEFT JOIN, and FULL JOIN to connect tables.
Aggregate & Group Data - Use COUNT, SUM, AVG, MIN, MAX, GROUP BY, and HAVING.
Requirements
No programming experience needed, everything should be provided.
Description
Master the fundamentals of SQL using PostgreSQL, one of the most powerful and widely used relational database systems! Whether you're a beginner looking to break into data management or a developer wanting to strengthen your SQL skills, this course will provide you with a solid foundation in database design, querying, and data manipulation.You'll learn how to create databases, define tables, insert and manage data, perform complex queries, and optimize performance-all using real-world examples and best practices.By the end of this course, you'll be confident in writing SQL queries and ready to apply your knowledge in real-world projects.Learning OutcomesBy the end of this course, learners will be able to:SQL Fundamentals & PostgreSQL Setup • Install and set up PostgreSQL (using Docker & pgAdmin). • Understand relational databases & SQL syntax. • Learn database schemas & ERD (Entity Relationship Diagrams).Defining and Managing Tables • Create and modify tables using primary & foreign keys. • Define data types, constraints, and relationships. • Implement one-to-one, one-to-many, and many-to-many relationships.Inserting, Updating, and Deleting Data • Perform INSERT, UPDATE, and DELETE operations. • Use transactions & rollbacks for data integrity. • Load JSON & CSV data into PostgreSQL.Querying and Filtering Data • Retrieve data using SELECT queries. • Filter records using WHERE, LIKE, IN, BETWEEN, and logical operators. • Use ORDER BY, LIMIT, and OFFSET for pagination.Joins & Relationships in SQL • Master INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN. • Understand how to join multiple tables effectively. • Handle one-to-many and many-to-many relationships.Aggregations & Grouping Data • Use COUNT, SUM, AVG, MIN, MAX for data aggregation. • Learn GROUP BY and HAVING for grouped data filtering. • Work with subqueries and derived tables.
Who this course is for
Beginners & Aspiring Data Professionals - No prior SQL experience needed!
Developers & Software Engineers - Looking to integrate PostgreSQL into applications.
Data Analysts & Business Intelligence Professionals - Wanting to enhance SQL skills.
Students & Career Changers - Entering tech and data-related careers.
Anyone Working with Databases - Who wants to master PostgreSQL fundamentals.
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