AWS DATA ENGINEERING - 21.Complete SQL JOINS | SQL JOIN with Examples

Complete SQL JOINS | SQL JOIN with Examples SQL JOINs Explained: Master Table Relationships in SQL! In this video, learn how to use different SQL JOINs to combine data from multiple tables efficiently. 🔗📊 Understanding JOINs is essential for working with relational databases. ✅ What is a JOIN in SQL? A JOIN is used to retrieve related data from two or more tables based on a common column. With JOINs, you can efficiently query complex relationships between tables. Types of SQL JOINs Covered INNER JOIN: Retrieves only matching rows from both tables. LEFT JOIN (LEFT OUTER JOIN): Retrieves all rows from the left table, and matching rows from the right table (or NULL if no match). RIGHT JOIN (RIGHT OUTER JOIN): Retrieves all rows from the right table, and matching rows from the left table (or NULL if no match). FULL OUTER JOIN: Returns all rows from both tables (NULL for non-matching rows). Want more similar videos- hit like, comment, share and subscribe ❤️Do Like, Share and Comment ❤️ ❤️ Like Aim 5000 likes! ❤️ ➖➖➖➖➖➖➖➖➖➖➖➖➖ Please like & share the video. ➖➖➖➖➖➖➖➖➖➖➖➖➖ script CREATE TABLE employees ( employee_id INT PRIMARY KEY, name VARCHAR(50), department_id INT, salary DECIMAL(10, 2) ); -- Create departments table CREATE TABLE departments ( department_id INT PRIMARY KEY, department_name VARCHAR(50) ); -- Insert data into employees table INSERT INTO employees (employee_id, name, department_id, salary) VALUES (1, 'Alice', 1, 50000.00), (2, 'Bob', 2, 45000.00), (3, 'Charlie', 4, 48000.00), (4, 'David', 5, 52000.00); -- No department assigned -- Insert data into departments table INSERT INTO departments (department_id, department_name) VALUES (1, 'Human Resources'), (2, 'Finance'), (3, 'IT'); ➖➖➖➖➖➖➖➖➖➖➖➖➖ AWS DATA ENGINEER : https://www.youtube.com/playlist?list=PLOlK8ytA0MghpdMjb0m9zu1v9s_qbRP0q Azure data factory : https://youtube.com/playlist?list=PLOlK8ytA0MgguN5XidtQXbILxwCdJCUJE&si=iEICXHP80zGchUYh Azure data engineer playlist : https://youtube.com/playlist?list=PLOlK8ytA0MghBrzu0i6WlTBdoO1WdwV_e SQL PLAYLIST : https://www.youtube.com/playlist?list=PLOlK8ytA0MggGXIKmbfZ-_Xqcos3JKdV- PYSPARK PLAYLIST - https://www.youtube.com/playlist?list=PLOlK8ytA0MgjvOpd-088NRU_vTYw_aryH ➖➖➖➖➖➖➖➖➖➖➖➖➖ 📣Want to connect with me? Check out these links:📣 Join telegram to discuss https://t.me/+Cb98j1_fnZs3OTA1 ➖➖➖➖➖➖➖➖➖➖➖➖➖ what we have covered in this video: ➖➖➖➖➖➖➖➖➖➖➖➖➖ Hope you liked this video and learned something new :) See you in next video, until then Bye-Bye! ➖➖➖➖➖➖➖➖➖➖➖➖➖