What type of pattern is repository?

What is a Repository Design Pattern? By definition, the Repository Design Pattern in C# mediates between the domain and the data mapping layers using a collection-like interface for accessing the domain objects . Repository Design Pattern separates the data access logic and maps it to the entities in the business logic.

DAO is an abstraction of data persistence. However, a repository is an abstraction of a collection of objects . DAO is a lower-level concept, closer to the storage systems. However, Repository is a higher-level concept, closer to the Domain objects.