Skip to main content

EF Core 7 - Handling deletes

I’m still catching up on all the improvements that come with the release of .NET 7. One thing I noticed is a nice new feature in EF Core 7.

Before EF Core 7 when you want to delete an entity you had to fetch it first. With the new ExecuteDelete (and ExecuteUpdate) method you can execute delete commands (and update commands) directly in the database.

Executing the code above will result in the following query:

As you can see, it generates a SQL statement to delete the entities that match the condition. Exactly what you would expect and without the overhead of loading the entities in memory first. Nice!

Remark: EF Core 7 can be used with .NET 6. So you can start using this feature without having to upgrade to .NET 7 first.

Also keep the following in mind when using the ExecuteDelete method:

  • The specific changes to make must be specified explicitly; they are not automatically detected by EF Core.
  • Any tracked entities will not be kept in sync.
  • Additional commands may need to be sent in the correct order so as not to violate database constraints. For example deleting dependents before a principal can be deleted.
Labels:

Popular posts from this blog

Azure DevOps/ GitHub emoji

I’m really bad at remembering emoji’s. So here is cheat sheet with all emoji’s that can be used in tools that support the github emoji markdown markup: All credits go to rcaviers who created this list.
Read more

Kubernetes–Limit your environmental impact

Reducing the carbon footprint and CO2 emission of our (cloud) workloads, is a responsibility of all of us. If you are running a Kubernetes cluster, have a look at Kube-Green . kube-green is a simple Kubernetes operator that automatically shuts down (some of) your pods when you don't need them. A single pod produces about 11 Kg CO2eq per year( here the calculation). Reason enough to give it a try! Installing kube-green in your cluster The easiest way to install the operator in your cluster is through kubectl. We first need to install a cert-manager: kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.14.5/cert-manager.yaml Remark: Wait a minute before you continue as it can take some time before the cert-manager is up & running inside your cluster. Now we can install the kube-green operator: kubectl apply -f https://github.com/kube-green/kube-green/releases/latest/download/kube-green.yaml Now in the namespace where we want t
Read more

DevToys–A swiss army knife for developers

As a developer there are a lot of small tasks you need to do as part of your coding, debugging and testing activities.  DevToys is an offline windows app that tries to help you with these tasks. Instead of using different websites you get a fully offline experience offering help for a large list of tasks. Many tools are available. Here is the current list: Converters JSON <> YAML Timestamp Number Base Cron Parser Encoders / Decoders HTML URL Base64 Text & Image GZip JWT Decoder Formatters JSON SQL XML Generators Hash (MD5, SHA1, SHA256, SHA512) UUID 1 and 4 Lorem Ipsum Checksum Text Escape / Unescape Inspector & Case Converter Regex Tester Text Comparer XML Validator Markdown Preview Graphic Color B
Read more