This is the link to the youtube videos : CREATE TABLE sales (     sales_id INT PRIMARY KEY,     date_id INT ,     product_id INT ,     customer_id INT ,     location_id INT ,     promotion_id INT ,     quantity_sold INT,     amount_sold DECIMAL(10, 2) ) CREATE TABLE product_dimension (     product_id INT PRIMARY KEY,     product_name VARCHAR(255),     category VARCHAR(50),     manufacturer VARCHAR(100) ) CREATE TABLE customer_dimension (     customer_id INT PRIMARY KEY,     customer_name VARCHAR(255),     city VARCHAR(100), … متابعة قراءة Postgres Playlist for SQL Analysis P1