Web Reference: May 8, 2023 · If the entity already exists in the database, it will be deleted during SaveChanges. If the entity has not yet been saved to the database (that is, it is tracked as added) then it will be removed from the context and will no longer be inserted when SaveChanges is called. I've got an MVC web application that uses SQL Server 2008 as a back end database along with the Entity Framework. The application is working fine and pulling data from the database just fine. Nov 22, 2025 · In this blog, we’ll demystify DbUpdateException, explore common scenarios where SaveChanges() fails, and most importantly, provide actionable steps to diagnose the issue even when there’s no inner exception. By the end, you’ll have a toolkit to quickly identify and resolve these elusive errors.
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