Is EF core DbContext thread safe?
DbContext is not thread-safe. Do not share contexts between threads. Make sure to await all async calls before continuing to use the context instance. An InvalidOperationException thrown by EF Core code can put the context into an unrecoverable state.
What all operations could be done using DbContext instance Mcq?
You can use a DbContext associated to a model to:
- Write and execute queries.
- Materialize query results as entity objects.
- Track changes that are made to those objects.
- Persist object changes back on the database.
- Bind objects in memory to UI controls.
What is DbContext in EF?
DbContext is an important class in Entity Framework API. It is a bridge between your domain or entity classes and the database. DbContext is the primary class that is responsible for interacting with the database.
How do you change the state of entity using DbContext?
This can be achieved in several ways: setting the EntityState for the entity explicitly; using the DbContext. Update method (which is new in EF Core); using the DbContext. Attach method and then “walking the object graph” to set the state of individual properties within the graph explicitly.
Which is faster stored procedure or LINQ?
Stored procedures are faster as compared to LINQ query since they have a predictable execution plan and can take the full advantage of SQL features. Hence, when a stored procedure is being executed next time, the database used the cached execution plan to execute that stored procedure.
Is dbcontext threadsafe?
I am aware of the fact that DbContext is not threadsafe. I read a lot of docs, blog Posts and answers here on Stackoverflow, and I could find a lot of (partly contradictory) answers for this but no real “best practice” when also working with DI.
What are the advantages of using factory instead of scoped dbcontext?
With factory you don’t need to worry about scopes anymore, and make your code free of ASP.NET Core dependencies. You will be able to execute queries asynchronously, which not possible with scoped DbContext without workarounds.
What are the advantages of multithreading?
Multithreading is a process of executing more than one thread simultaneously. The main advantage is: Cost of communication between threads is low. 3) What are the states associated with the thread? 4) Discuss a Thread Life Cycle? The life cycle of a thread is similar to the life cycle of processes running in an operating system.
Can a process have more than one thread?
The process can contain multiple threads. The process can run on on different memory space, but all threads share the same memory space. 7) What is deadlock? Deadlock is a situation when a thread is waiting for an object lock, that is acquired by another thread and second thread also waiting for an object lock that is acquired by the first thread.