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Q&A What is the rationale of having Cascade as a DeleteAction in EntityFramework.Core?

After toying a little more with Delete actions for referentials, I think the rational of having the CASCADE DELETE as default is the following: having to DELETE the children before the parent is ...

posted 3y ago by Alexei‭

Answer
#1: Initial revision by user avatar Alexei‭ · 2020-10-16T13:40:22Z (over 3 years ago)
After toying a little more with Delete actions for referentials, I think the rational of having the CASCADE DELETE as default is the following:

- having to DELETE the children before the parent is not actually trivial (clearing the navigation properties collections first leads to a save error, removing the children and saving creates lots of delete queries).

- back in the days there was a more database centered (first) approach (e.g. much business logic in stored procedures, many queries to be run directly from a SQL client) and less focus on automatic testing. Since the logic is more "code-first" now and more focus on test coverage it is harder to accidently remove data in cascade.