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{ Tag Archives } debugging

Sometimes, SELECT Really Is Broken

We got a bug report from a customer the other day; a certain query in one of our web services was giving the following error:
A column has been specified more than once in the order by list. Columns in the order by list must be unique.
Seems clear enough, except that

There was no duplication in [...]

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Why Won’t Visual Studio Step Into This Code?

I helped another developer debug an interesting problem this morning. Let’s see if you can spot the problem. The code in question looked something like this simplified version containing only enough code to show the problem:

public void Execute()
{
DoStuff(); // breakpoint 1
}

public IEnumerable<Coordinate> DoStuff()
{
[...]

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The Web Is Just Text

In the beginning (around 1990 or so), the World Wide Web was composed of three parts:

HTML, a markup language for displaying rich documents
HTTP, a stateless protocol for communicating with a web server
The URI, a short, standardized reference to a network resource

Almost 20 years later, very little has changed, especially from the point of view of [...]

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