It's an ORM (Object-rational Mapper) for querying SQL databases into objects. Somewhat the same space as "Hibernate" in Java. (2)
Some prefer e.g. Dapper (3) as it's much more light-weight. EF is very much a big thing, but some people need and want that.
1) https://docs.microsoft.com/en-us/ef/
2) https://hibernate.org/
3) https://dapper-tutorial.net/
It's an ORM (Object-rational Mapper) for querying SQL databases into objects. Somewhat the same space as "Hibernate" in Java. (2)
Some prefer e.g. Dapper (3) as it's much more light-weight. EF is very much a big thing, but some people need and want that.
1) https://docs.microsoft.com/en-us/ef/
2) https://hibernate.org/
3) https://dapper-tutorial.net/