我试图学习Linq/Lambda表达式并被困在某个地方.
我在做什么
我创建了两个具有属性的类,其中包含一些常见属性.这些类就像(它的测试代码).
class TestA
{
public int Id { get; set; }
public int ProductID { get; set; }
public string Category { get; set; }
public TestA(int id, int procid, string category)
{
this.Id = id;
this.ProductID = procid;
this.Category = category;
}
}
class TestB
{
public int ProductID { get; set; }
public string Category { get; set; }
public TestB(int procid, string category)
{
this.ProductID = procid;
this.Category = category;
}
}
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然后我为他们创建了两个列表, …
我是SQL Server的新手,我不知道怎么说这个问题.我觉得这可能会重演.如果您知道,请将其标记为重复.我将用数据解释我想要实现的目标
表数据 - sometable
ID TKID Status DateTimeStamp RunMin
-----------------------------------------------------
215 6 Start 2009-10-29 09:48:14.243 NULL
261 6 Stop 2009-10-30 10:05:16.460 1457
356 6 Start 2009-11-03 14:11:05.097 NULL
357 6 Stop 2009-11-03 15:20:05.133 1526
358 6 Start 2009-11-03 16:14:45.863 NULL
574 19 Start 2009-11-12 13:12:11.827 NULL
575 19 Stop 2009-11-12 13:47:23.077 35
543 259 Start 2009-11-12 09:01:24.013 NULL
620 259 Stop 2009-11-14 11:25:30.177 NULL
623 259 Start 2009-11-14 16:47:32.913 NULL
720 352 Start 2009-11-18 17:47:38.637 NULL
730 352 Stop …Run Code Online (Sandbox Code Playgroud)