I have a scenario where I have t开发者_如何学Co change the order by field based on some condition.
My program is more complex, but basically the problem is like this -- there is table Customer and table City. In Customor I have field cityId and foreign key for it.
I want to have an abstract class with 3 classes extending it which i need to save to a database using linq. I\'ve made开发者_开发知识库 a table with all the attributes of the parent class and the 3 su
When I catch a ChangeConflictExceptio开发者_StackOverflow中文版n is it possible to determine the actual SQL statement that failed from within the code?ie; rather than inspecting profiler output.I hope
How might I go about writing a unit test which will test the ability of a method to add a record to a database?Currently, I have the following:
We\'re using a Linq-to-SQL DataContext in a web application that provides read-only data to the application and is never updated (have set ObjectTrackingEnabled = false to enforce this.
If there\'s a better way to do this, let me know, but this is kind of how i envisioned it. Can it be done?
As it currently stands, this question is not a good fit for our Q&A format. We 开发者_StackOverflow中文版expect answers to be supported by facts, references,or expertise, but this question wil
Note that when I say \"client\", I mean businesses or organizations that have signed up for the service.
I\'m building a website for an school and i need a list of users that don\'t have 2 parents asigned. This would be the SQL query:
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