Certainly! Let’s create a practical example involving a source table and a target table. Imagine we have an e-commerce platform with a table that keeps track of all the products, and we want to create a promotional campaign for products that have been highly rated by customers.
First, we’ll create a source table named Products that contains product information, including ratings:
ProductID INT,
ProductName VARCHAR(255),
Rating DECIMAL(3, 2)
);
Let’s assume the Products table has the following data:
ProductID
ProductName
Rating
1
Laptop
4.5
2
Smartphone
4.7
3
Headphones
4.6
Next, we’ll create a target table named Promotions where we want to insert products with a rating of 4.5 or higher for a special discount campaign:
create Promotions table without any values! it should be empty!(not always just for our purpose 🙂 )
ProductID INT,
ProductName VARCHAR(255)
);
Now, we’ll use the INSERT INTO SELECT statement to insert the ProductID and ProductName from the Products table into the Promotions table for products with a rating of 4.5 or higher:
SELECT ProductID, ProductName
FROM Products
WHERE Rating >= 4.5;
After executing this query, the Promotions table will contain the following data:
ProductID
ProductName
1
Laptop
2
Smartphone
3
Headphones
This is a practical example of how the INSERT INTO SELECT statement can be used in the real world to manage promotions based on product ratings in an e-commerce scenario.
