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 Author Marc D Anderson  Views 1774 View Original Article

Have you ever needed to generate a unique identifying number, sort of like the ID column in a list? Well, until I started learning the REST APIs, I had no idea how we could ever do this in SharePoint. With the adherence to the OData standards, we can do this and more using eTags to manage concurrency. Concurrency control is a thorny problem in computer science. It refers to the situation where more than one person requests to change (either via update or delete) a piece of data stored somewhere.…
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