How to insert/update/delete records from tables without primary key using LINQ

Question

I'm using LINQ to connect to a third party database.

Now I have to insert some records into a table that have no primary key set and I get this exception:

System.InvalidOperationException: Can't perform Create, Update or Delete operations on 'Table (the_table)' because it has no primary key.

How can I solve this? should I use ExecuteCommand to avoid this exception?

Answer 1

ExecuteCommand将为您提供更好的性能，因为您可以删除一个查询中的所有记录。

Answer 2

在EF模型中使用唯一列作为PK。