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Why unsigned integer is not available in PostgreSQL?

I came across this post ( What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL? ) and realized that PostgreSQL does not support unsigned integer. ...
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What port is a given program using? [closed]

...his, and I don't know what security implications there are on Vista. I usually add -n as well to make it a little faster, but adding -b can make it quite slow. Edit: If you need more functionality than netstat provides, vasac suggests that you try TCPView. ...
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Multiple github accounts on the same computer?

... All you need to do is configure your SSH setup with multiple SSH keypairs. This link is easy to follow (Thanks Eric): http://code.tutsplus.com/tutorials/quick-tip-how-to-work-with-github-and-multiple-accounts--net-22574 Gen...
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How to get the jQuery $.ajax error response text?

...n reality jquery while creating a JSONP request won't create XHR object at all. JSON-Padding is just that dynamic script references are added pointing to the URL and the json data will be wrapped with a method which gets invoked. So XHR is not used at all. – NLV ...
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Running a cron job on Linux every six hours

..., since cron runs with an extensively cut-down environment. You won't have all the environment variables you have in your interactive shell session. It's a good idea to specify an absolute path to your script/binary, or define PATH in the crontab itself. To help debug any issues I would also redire...
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Why is __init__() always called after __new__()?

... new instance. __new__ is the first step of instance creation. It's called first, and is responsible for returning a new instance of your class. In contrast, __init__ doesn't return anything; it's only responsible for initializing the instance after it's been created. In ge...
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When should we implement Serializable interface?

... From What's this "serialization" thing all about?: It lets you take an object or group of objects, put them on a disk or send them through a wire or wireless transport mechanism, then later, perhaps on another computer, reverse the process: resurrect...
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What is unit testing and how do you do it? [duplicate]

...r program into pieces, and subjecting each piece to a series of tests. Usually tests are run as separate programs, but the method of testing varies, depending on the language, and type of software (GUI, command-line, library). Most languages have unit testing frameworks, you should look into one ...
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Turning multi-line string into single comma-separated

... awk: invalid -v option :( – Marsellus Wallace Jun 15 '15 at 17:38 6 Add a space bet...
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NHibernate vs LINQ to SQL

...ete) functionality, LINQ to SQL is ideal because of simplicity. But personally I like using NHibernate because it facilitates a cleaner domain. Edit: @lomaxx - Yes, the example I used was simplistic and could have been optimized to work well with LINQ to SQL. I wanted to keep it as basic as possi...