Persisting Data: The DbContext class is also responsible for performs the Insert, Update and Delete operations to the database which is persistent data permanently to the database. This is mostly because there was a very simple way of creating and disposing a DbContext and I was perfectly satisfied with using it. In order to be able to dynamically enable/disable filters, a special condition is added to the sql query that will look something like: The performance of the library is either faster or comparable to using a DbContext, but as always, test and benchmark and make an informed decision in your specific use case.
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Just like with Entity Framework 6, in EF Core we use DbContext to query a database and group together changes that will be written back to the store as a unit. Often I see when people put all the DbContext configurations into one file, then after some time, it becomes giant. When writing unit tests one of the challenges is to isolate your tests from everything.
Entity Framework allows you to execute raw SQL queries for the underlying relational database.