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Can you use repository pattern with an ORM?
No it doesn’t, not at least when we use an ORM. Isaac Abraham has a very good article explaining why this simply is not the case. Also if you use newer frameworks such as entity framework core, this even got easier. There are in memory database that you can used through something called InMemory Provider, more on that here.
Why do we need repository pattern in Entity Framework Core?
Microsoft has built the Entity Framework Core using the Repository Pattern and Unit of Work Patterns. So, why do we need to add another layer of abstraction over the Entity Framework Core, which is yet another abstration of Data Access. The answer to this is also given by Microsoft.
Is it better to use or / m or repository pattern?
You just add complexity without getting any benefit over using the OR/M directly. Either implement Repository pattern correctly or just don’t use it at all. (If you really want to handle big entities you can combine the Repository pattern with the Specification pattern.
Why do we use repository pattern in Dapper?
Probably Dapper to fetch the data and EFCore to write the data. This is solely for performance optimizations. Repository pattern helps us to achieve this by creating an Abstration over the DataAccess Layer. Now, you no longer have to depend on EFCore or any other ORM for your application.
How does the ORM repositories work in Laravel?
It works as an abstraction for your persistence layer, giving you a place to write collecting logic, build queries, etc.
Can you use an ORM like NHibernate?
This reason hold water if we use the SQL and ADO.NET directly. But it is not the case when we use an ORM like Entity Framework or NHibernate. Now when using ORM the complexity of querying the database is hidden behind these kind of frameworks.
Is it OK to use repository in SQL?
So unless you’re using SQL directly and you want in memory representation of your database objects, using repository doesn’t make any sense. No it doesn’t, not at least when we use an ORM. Isaac Abraham has a very good article explaining why this simply is not the case.