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MySQL, better to insert NULL or empty string?

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H2 in-memory database. Table not found

... I found the problem myself in the mean time, but yeah, this is completely correct. Thanks! – Jorn May 9 '11 at 16:46 3 ...
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Converting any string into camel case

... Great code, and it ended up winning jsperf.com/js-camelcase/5 . Care to contribute a version that can handle (remove) non-alpha chars? camelize("Let's Do It!") === "let'SDoIt!" sad face. I'll try myself but fear I will just add another replace. ...
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How can I start an interactive console for Perl?

How can I start an interactive console for Perl, similar to the irb command for Ruby or python for Python? 23 Answers ...
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“Insert if not exists” statement in SQLite

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dplyr: “Error in n(): function should not be called directly”

.... I am expecting to see a new column n produced with the frequency of each combination. What am I missing? I triple checked that the package is loaded. ...
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Painless way to install a new version of R?

... Just for completeness, there are some ways to prevent you from having this problem. As Dirk said, save your packages in another directory on your computer. install.packages("thepackage",lib="/path/to/directory/with/libraries") You...
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Why would finding a type's initializer throw a NullReferenceException?

...ere being no null values in my code. It only throws the exception when compiled with no debug information. 2 Answers ...
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How do I compare two hashes?

I am trying to compare two Ruby Hashes using the following code: 14 Answers 14 ...
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How do I get formatted JSON in .NET using C#?

... You are going to have a hard time accomplishing this with JavaScriptSerializer. Try JSON.Net. With minor modifications from JSON.Net example using System; using Newtonsoft.Json; namespace JsonPrettyPrint { internal class Program { private s...