Foreign Key With Cascade Delete
Medium
DDL & Constraints
Create Orders so that order rows are deleted automatically when their customer is deleted. Orders has id (primary key), customer_id and amount.
Table schema
Customers(id INT PRIMARY KEY, name VARCHAR(50))Sample data
Customers: (1, Aman)
Orders: (10, customer 1, 100)
Then: DELETE FROM Customers WHERE id = 1;
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