Entity Framework Tutorial BulkInsert

When you want to insert hundreds, thousands, or millions of entities using SaveChanges() method, you will notice that your application performance is INSANELY slow.

• The SaveChanges() requires one database round-trip for every entity to insert.
• For example, if you need to insert 10000 entities, then 10000 database round-trips will be performed and your application suffers from performances issues.

BulkInsert

Entity Framework Classic provides an extension method BulkInsert() which requires the minimum database round-trips as compared to SaveChanges().

Performance Comparisons

Example

The following example, add list of authors to the database using BulkInsert method.

using (var context = new BookStore())
{
    List<Author> authors = GetAuthorsList();
    context.BulkInsert(authors);
}

Try it

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