When should I use foreign keys in my database?
An example of an AI chatbot conversation about when to use foreign keys in databases.
When should I use foreign keys in my database?
Foreign keys are used to establish a relationship between two tables, ensuring data integrity.
Can you give me an example of how to implement a foreign key?
Sure! If you have a 'Customers' table and an 'Orders' table, you can use a foreign key in 'Orders' that references 'Customers'.
What happens if I don't use foreign keys?
Without foreign keys, you risk having orphaned records and inconsistent data across your tables.
Are there any performance implications of using foreign keys?
Yes, while foreign keys help maintain data integrity, they can slow down insert and update operations due to the checks performed.
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