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Database Design for Revisions?

...tribute. This just causes problems down the line, requires surrogate keys and all sorts of other problems. Design 2 does have problems with schema changes. If you change the Employees table you have to change the EmployeeHistories table and all the related sprocs that go with it. Potentially doub...
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How do I do base64 encoding on iOS?

I'd like to do base64 encoding and decoding, but I could not find any support from the iPhone SDK . How can I do base64 encoding and decoding with or without a library? ...
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Does Python have an ordered set?

...s referred to from the Python 2 Documentation. This runs on Py2.6 or later and 3.0 or later without any modifications. The interface is almost exactly the same as a normal set, except that initialisation should be done with a list. OrderedSet([1, 2, 3]) This is a MutableSet, so the signature for ...
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Is there a way to access method arguments in Ruby?

New to Ruby and ROR and loving it each day, so here is my question since I have not idea how to google it (and I have tried :) ) ...
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Purpose of Unions in C and C++

...ed unions earlier comfortably; today I was alarmed when I read this post and came to know that this code 15 Answers ...
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What is the difference between JavaScript and ECMAScript?

What's the difference between ECMAScript and JavaScript? From what I've deduced, ECMAScript is the standard and JavaScript is the implementation. Is this correct? ...
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How can I efficiently select a Standard Library container in C++11?

...art is slightly off, because list is not such a good container in general, and neither is forward_list. Both lists are very specialized containers for niche applications. To build such a chart, you just need two simple guidelines: Choose for semantics first When several choices are available, go ...
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Executing JavaScript without a browser?

...ng without a browser. I want to run scripts from the Linux or Mac OS X command line, much like we run any other scripting language (ruby, php, perl, python...) ...
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Lost connection to MySQL server at 'reading initial communication packet', system error: 0

...ests that it might be a firewall problem: I have just had this problem and found it was my firewall. I use PCTools Firewall Plus and it wasn't allowing full access to MySQL. Once I changed that it was fine. Hope that helps. Could that be it? Also, someone here suggests that it might be becaus...
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Pretty graphs and charts in Python [closed]

What are the available libraries for creating pretty charts and graphs in a Python application? 15 Answers ...