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What are the differences between poll and select?

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Free space in a CMD shell

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jQuery Call to WebService returns “No Transport” error

... If your jQuery page isn't being loaded from http://localhost:54473 then this issue is probably because you're trying to make cross-domain request. Update 1 Take a look at this blog post. Update 2 If this is indeed the problem (and I suspect it is), you might want to check out JSONP as a ...
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Write bytes to file

I have a hexadecimal string (e.g 0CFE9E69271557822FE715A8B3E564BE ) and I want to write it to a file as bytes. For example, ...
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Xcode Simulator: how to remove older unneeded devices?

I'm running Xcode 4.3.1 iOS-Simulator which originally only supports iOS 5.1. 18 Answers ...
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Which is faster: multiple single INSERTs or one multiple-row INSERT?

..., where the numbers indicate approximate proportions: Connecting: (3) Sending query to server: (2) Parsing query: (2) Inserting row: (1 × size of row) Inserting indexes: (1 × number of indexes) Closing: (1) From this it should be obvious, that sending one large statement wil...
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What is the difference between SqlCommand.CommandTimeout and SqlConnection.ConnectionTimeout?

...For the sake of argument, let's say I have a !**&#Q@? query that takes 32 seconds to run. If I set SqlCommand.CommandTimeout = 40 but leave SqlConnection.ConnectionTimeout at its default (presumably 30), will the connection timeout? In other words, do I have to set both properties? It sounds lik...
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Do I encode ampersands in ?

...ad to encode those using percent-escapes, and in this case it would give %C3%A9, because they were defined by RFC 1738. However, RFC 1738 has been superseded by RFC 3986 (URIs, Uniform Resource Identifiers) and RFC 3987 (IRIs, Internationalized Resource Identifiers), on which the WhatWG based its wo...
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Why does the C# compiler go mad on this nested LINQ query?

Try to compile following code and you'll find that compiler takes >3 GB of RAM (all free memory on my machine) and very long time to compile (actually I get IO exception after 10 minutes). ...
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URL matrix parameters vs. query parameters

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