Tietokantakaaviossa
Tietokantakaaviossa, also known as an entity-relationship diagram (ERD), is a visual representation of the structure of a database. It is used to illustrate the relationships between different entities within a database, making it easier to understand and design complex databases. ERDs are commonly used in the early stages of database design to communicate the database structure to stakeholders, including developers, database administrators, and end-users.
An ERD typically consists of three main components: entities, attributes, and relationships. Entities represent real-world objects
Entities are represented by rectangles, with the entity name inside the rectangle. Attributes are listed inside
ERDs can be created using various tools, including specialized software, drawing programs, or even whiteboards. They