What is entity occurrence in database?

Entity occurrence in a database refers to a specific instance or realization of an entity type within a database schema. For example, if "Customer" is an entity type, a particular customer, such as "John Doe," represents an entity occurrence. Each occurrence holds unique attributes that distinguish it from other occurrences of the same entity type, typically stored as a row in a table. This concept is essential for organizing and managing data in relational databases.