Understanding Difference between EXCEPT and NOT IN Operator

Both EXCEPT and NOT IN operators are used to filter records from a table based on a specific criterion. In this article, we will look at these operators in detail and will investigate the differences between them. Before we go further, let's create some dummy data that we will use in this example: Preparing Dummy Data Execute the following script to create a dummy database and tables that we will be using in this article.CREATE Database ShowRoom; GO USE ShowRoom; CREATE TABLE Cars1 ( id INT, name VARCHAR(50) NOT NULL, company VARCHAR(50) NOT NULL, power INT NOT NULL ) CREATE TABLE Cars2 ( id INT, name VARCHAR(50) NOT NULL, company VARCHAR(50) NOT NULL, power INT NOT NULL ) In the script above, we create a ShowRoom database with two tables, Cars1 and Cars2. Let's add some dummy records to the Cars1 and Cars2 tables. Execute the following script:USE ShowRoom INSERT INTO Cars1 VALUES (1, 'Corrolla', 'Toyota', 1800), (2, 'City', 'Honda', 1500), (3, 'C200', 'Mercedez', 2000), (4, 'Vitz', 'Toyota', 1300), (5, 'Baleno', 'Suzuki', 1500), (6, 'C500', 'Mercedez', 5000), (7, '800', 'BMW', 8000), (8, 'Mustang', 'Ford', 5000), (9, '208', 'Peugeot', 5400), (10, 'Prius', 'Toyota', 3200) INSERT INTO Cars2 VALUES (6, 'C500', 'Mercedez', 5000), (7, '800', 'BMW', 8000), (8, 'Mustang', 'Ford', 5000), (9, '208', 'Peugeot', 5400), (10, 'Prius', 'Toyota', 3200), (11, 'Atlas', 'Volkswagen', 5000), (12, '110', 'Bugatti', 8000), (13, 'Landcruiser', 'Toyota', 3000), (14, 'Civic', 'Honda', 1800), (15, 'Accord', 'Honda', 2800) We now have a useful data set.

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