我设置了一个 3 列索引,该索引在我的表中必须是唯一的。我怎么能告诉 EF 呢?我目前正在DbUpdateException
尝试保存更改。
Cannot insert duplicate key row in object 'sm.SkillAssignations' with unique index 'IX_SkillAssignations'. The duplicate key value is (8285, 1, 2, 2).\r\nThe statement has been terminated.