Can't perform Create, Update or Delete operations on Table because it has no primary key

Question

I\'ve been trying to insert row in the table having an identity column RequestID (which is primary key as well)

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Answer 1

LINQ does not allow to insert data into table without primary key. To achieve the insert data with table without primary key you can either use store procedure or create a query and execute using LINQ. Below link provide good explanation of the same.

Can't perform Create, Update or Delete operations on Table(Employee) because it has no primary key