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Code-First Development with Entity Framework by Sergey Barskiy

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Exploring LINQ functions

There are many LINQ functions that you will need to know in order to be proficient with queries in Entity Framework.

Element operations

Element operations allow you to select a single row. Sometimes they are enhanced to select null if a row that matches the target condition does not exist. Typically, you would combine element functions with a filter condition, though this is not necessary. As element functions work on sets of data, you will need to construct a query first and then apply an element function. If you are using the method syntax, you can combine both actions into a single statement. If you are using the query syntax, you would need to apply an element function to the entire query. For example, let's select a ...

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