Videos ((full)) - The Complete Sql Bootcamp 2020: Go From Zero To Hero

SELECT orders.order_id, customers.customer_name FROM orders INNER JOIN customers ON orders.customer_id = customers.customer_id; Subqueries: A query nested inside another query (in SELECT , FROM , or WHERE ).

Abstract This paper synthesizes the core curriculum of The Complete SQL Bootcamp 2020 , a video series designed to take students from novice to proficient in Structured Query Language (SQL). The bootcamp emphasizes practical, real-world database manipulation using PostgreSQL. This document outlines the fundamental syntax, advanced querying techniques, joins, table operations, and analytical functions covered in the video lectures. 1. Foundations: Database Setup & Basic Syntax The bootcamp begins with environment setup (PostgreSQL and pgAdmin) and the structure of relational databases. the complete sql bootcamp 2020: go from zero to hero videos

SELECT customer_name, email FROM customers LIMIT 10; Videos in this section focus on refining queries to retrieve specific information. SELECT orders

SELECT product_name, price FROM products WHERE price > (SELECT AVG(price) FROM products); Temporary named result sets (using WITH ) for cleaner, more readable queries. SELECT customer_name, email FROM customers LIMIT 10; Videos

FUNCTION(column) OVER (PARTITION BY group_column ORDER BY order_column)

SELECT department, AVG(salary) AS avg_salary FROM employees GROUP BY department; Filters groups after aggregation (unlike WHERE , which filters rows before aggregation).