Fastest Way of Inserting in Entity Framework

Question

I\'m looking for the fastest way of inserting into Entity Framework.

I\'m asking this because of the scenario where you have an active TransactionScope a

Answer 1

As per my knowledge there is no BulkInsert in EntityFramework to increase the performance of the huge inserts.

In this scenario you can go with SqlBulkCopy in ADO.net to solve your problem

Answer 2

The fastest way would be using bulk insert extension, which I developed

note: this is a commercial product, not free of charge

It uses SqlBulkCopy and custom datareader to get max performance. As a result it is over 20 times faster than using regular insert or AddRange

usage is extremely simple

context.BulkInsert(hugeAmountOfEntities);

Answer 3

But, for more than (+4000) inserts i recommend to use stored procedure. attached the time elapsed. I did inserted it 11.788 rows in 20"

thats it code

 public void InsertDataBase(MyEntity entity)
    {
        repository.Database.ExecuteSqlCommand("sp_mystored " +
                "@param1, @param2"
                 new SqlParameter("@param1", entity.property1),
                 new SqlParameter("@param2", entity.property2));
    }

Answer 4

as it was never mentioned here I want to recomment EFCore.BulkExtensions here

context.BulkInsert(entitiesList);                 context.BulkInsertAsync(entitiesList);
context.BulkUpdate(entitiesList);                 context.BulkUpdateAsync(entitiesList);
context.BulkDelete(entitiesList);                 context.BulkDeleteAsync(entitiesList);
context.BulkInsertOrUpdate(entitiesList);         context.BulkInsertOrUpdateAsync(entitiesList);         // Upsert
context.BulkInsertOrUpdateOrDelete(entitiesList); context.BulkInsertOrUpdateOrDeleteAsync(entitiesList); // Sync
context.BulkRead(entitiesList);                   context.BulkReadAsync(entitiesList);

Answer 5

One of the fastest ways to save a list you must apply the following code

context.Configuration.AutoDetectChangesEnabled = false;
context.Configuration.ValidateOnSaveEnabled = false;

AutoDetectChangesEnabled = false

Add, AddRange & SaveChanges: Doesn't detect changes.

ValidateOnSaveEnabled = false;

Doesn't detect change tracker

You must add nuget

Install-Package Z.EntityFramework.Extensions

Now you can use the following code

var context = new MyContext();

context.Configuration.AutoDetectChangesEnabled = false;
context.Configuration.ValidateOnSaveEnabled = false;

context.BulkInsert(list);
context.BulkSaveChanges();

Answer 6

Here is a performance comparison between using Entity Framework and using SqlBulkCopy class on a realistic example: How to Bulk Insert Complex Objects into SQL Server Database

As others already emphasized, ORMs are not meant to be used in bulk operations. They offer flexibility, separation of concerns and other benefits, but bulk operations (except bulk reading) are not one of them.