我想知道在 sql 服务器中的非关键属性指的是什么。 这个想法与表格 I 有关, 被混淆了 。 这是否意味着列其他主密钥 。
Sql 服务器中的非关键字属性是一个列,不能用来识别客户表中的唯一记录,例如名称或年龄列。
As a learning experience I recently tried implementing Quicksort with 3 way partitioning in C#. Apart from needing to add an extra range check on the left/right variables before the recursive call, ...
I m the only developer in my company, and am getting along well as an autodidact, but I know I m missing out on the education one gets from working with and having code reviewed by more senior devs. ...
I have two EF entities. One has a property called HouseNumber. The other has two properties, one called StartHouseNumber and one called EndHouseNumber. I want to create a many to many association ...
I m using decimal type (.net), and I want to see if two numbers are equal. But I only want to be accurate to 10 decimal places. For example take these three numbers. I want them all to be equal. 0....
I m creating an STA version of the SynchronizationContext for use in Windows Workflow 4.0. I m wondering what to do about exceptions when Post-ing callbacks. The SynchronizationContext can be used ...
I ve got some code which sets up a datacontext. Often enough, the datacontext should be set to some underlying data collection, such as an ObservableCollection - but occasionally I d like to set it ...
I am building an application with C#. I managed to turn this into a single instance application by checking if the same process is already running. Process[] pname = Process.GetProcessesByName("...
NOTE I have asked the related question (with an accepted answer): How to combine DataTrigger and Trigger? I think I need to combine an EventTrigger and a DataTrigger to achieve what I m after: when ...
