C# Efficiently delete 50000 records in batches using SQLBulkCopy or equivalent library

Question

I\'m using this library to perform bulk delete in batches like following:

  while (castedEndedItems.Any())
  {
    var subList = castedEndedItems.Take(4000).         


        

Answer 1

If you don't mind the extra dependency, you could use the NuGet package Z.EntityFramework.Plus.

The code is roughly as follows:

using Z.EntityFramework.Plus;
[...]
         using (yourDbContext context = new yourDbContext())
         {
              yourDbContext.yourDbSet.Where( yourWhereExpression ).Delete();
         }

It is simple and efficient. The documentation contains exact numbers about the performance.

Regarding licensing: As far as I know, version 1.8 has an MIT license: https://github.com/zzzprojects/EntityFramework-Plus/blob/master/LICENSE The newer version are not free to use.