How are database related to each other?

Databases are related to each other through the way they store and connect information. In many systems, one database can link to another using shared data, like an ID number or a common field. This is called a relationship, and it helps keep information organized without repeating the same data in multiple places. There are different types of relationships, like one-to-one, one-to-many, and many-to-many, depending on how the data connects. These links make it easier to manage, update, and retrieve information accurately. In short, databases relate to each other by sharing and referencing specific pieces of data so everything stays connected.