What are table relationships in databases?

What are table relationships in databases?

Table relationships in databases define how data in one table relates to data in another. They are crucial for organizing and retrieving data efficiently.

Can you explain the different types of table relationships?

Sure! The main types are one-to-one, one-to-many, and many-to-many relationships. Each type defines how records in one table correspond to records in another.

What is a one-to-many relationship?

In a one-to-many relationship, a single record in one table can be associated with multiple records in another table. For example, a customer can have multiple orders.

How do you implement these relationships in SQL?

You implement relationships using foreign keys. For instance, in a one-to-many relationship, the 'many' table will have a foreign key that references the 'one' table.