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Let's start with an overview of data concurrency and the two types of data concurrency controls—pessimistic and optimistic.
Comic Book Library Manager Web App
The Comic Book Library Manager web app can be viewed at http://comic-book-library-manager.azurewebsites.net/.
The project files for the Comic Book Library Manager web app are available at http://treehouse-project-downloads.s3.amazonaws.com/dotnet-ef-with-aspnet-mvc-comic-book-library-manager-completed.zip.
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