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The SQL OVER() clause - when and why is it useful?
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You can use GROUP BY SalesOrderID. The difference is, with GROUP BY you can only have the aggregated values for the columns that are not included in GROUP BY.
In contrast, using windowed aggregate functions instead of GROUP BY, you can retrieve both aggregated and non-aggre...
Branch descriptions in Git
Is there a way in Git to have a 'description' for branches?
14 Answers
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What does the thread_local mean in C++11?
...confused with the description of thread_local in C++11. My understanding is, each thread has unique copy of local variables in a function. The global/static variables can be accessed by all the threads (possibly synchronized access using locks). And the thread_local variables are visible to all ...
Hyphen, underscore, or camelCase as word delimiter in URIs?
... should I use hyphens, underscores, or camelCase to delimit words in the URIs?
6 Answers
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How to get current time in milliseconds in PHP?
time() is in seconds - is there one in milliseconds?
12 Answers
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What is the difference between declarative and procedural programming paradigms?
What is the difference between the declarative and procedural programming paradigms? Could you please provide some examples?
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How to validate IP address in Python? [duplicate]
What's the best way to validate that an IP entered by the user is valid? It comes in as a string.
11 Answers
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How do I get currency exchange rates via an API such as Google Finance? [closed]
...ur answers.
Free currencyconverterapi:
Rates updated every 30 min
API key is now required for the free server.
A sample conversion URL is: http://free.currencyconverterapi.com/api/v5/convert?q=EUR_USD&compact=y
For posterity here they are along with other possible answers:
Yahoo finance API ...
why is plotting with Matplotlib so slow?
... python plotting libraries. Right now I'm trying matplotlib and I'm quite disappointed with the performance. The following example is modified from SciPy examples and gives me only ~ 8 frames per second!
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What does functools.wraps do?
In a comment on this answer to another question , someone said that they weren't sure what functools.wraps was doing. So, I'm asking this question so that there will be a record of it on StackOverflow for future reference: what does functools.wraps do, exactly?
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