Delete RavenDB collection

Question

I need to delete a whole collection of documents in Raven DB. Deleting one by one (documents) is not a wise choice. Is there a way I can do this easily?

Answer 1

You can do a set based operation.

store.DatabaseCommands.DeleteByIndex() to do so

store.DatabaseCommands.DeleteByIndex(
    "Enquiries/MyEnquiryIndexName",
    new IndexQuery { Query = "Id:*", },
    allowStale: false);

Code sample by @Marijin

Answer 2

Not sure about previous versions, but below applies to RavenDB 5.0

If you wanted to delete all documents from a collection called "Users", you could pass in the collection name to the DeleteByQueryOperation

DeleteByQueryOperation("from Users")

A generic version would look something like this:

using Raven.Client.Documents;
using Raven.Client.Documents.Operations;

public class ExampleClass
{
  public static void DeleteCollection<TEntity>(IDocumentStore store, string databaseName)
  {
    var collectionName = store.Conventions.GetCollectionName(typeof(TEntity));

    store.Operations
      .ForDatabase(databaseName)
      .Send(new DeleteByQueryOperation($"from {collectionName}"));
  }
}