Article: http://www.zzzprojects.com/entity-framework-extensions/docs/tutorials/overview

entity-framework-extensions-docs-tutorials-overview-example-1.cs

var ctx = new EntitiesContext();

ctx.Customers.AddRange(listToAdd); // add
ctx.Customers.RemoveRange(listToRemove); // remove
listToModify.ForEach(x => x.DateModified = DateTime.Now); // modify

// Easy to use
ctx.BulkSaveChanges();

// Easy to customize
context.BulkSaveChanges(bulk => bulk.BatchSize = 100);

entity-framework-extensions-docs-tutorials-overview-example-2.cs

var ctx = new EntitiesContext();

// Easy to use
ctx.BulkInsert(list);
ctx.BulkUpdate(list);
ctx.BulkDelete(list);
ctx.BulkMerge(list);

// Easy to customize
context.BulkMerge(customers, 
   bulk => bulk.ColumnPrimaryKeyExpression = customer => customer.Code; });

entity-framework-extensions-docs-tutorials-overview-example-3.cs

// DELETE all customers that are inactive for more than two years
context.Customers
    .Where(x => x.LastLogin < DateTime.Now.AddYears(-2))
    .DeleteFromQuery();
 
// UPDATE all customers that are inactive for more than two years
context.Customers
    .Where(x => x.Actif && x.LastLogin < DateTime.Now.AddYears(-2))
    .UpdateFromQuery(x => new Customer {Actif = false});