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How to round an average to 2 decimal places in PostgreSQL?
...s is on postgresql 9.5.1.
select date,(wind_speed/3.6)::numeric(7,1) from readings;
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Eclipse: All my projects disappeared from Project Explorer
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Read the other answers before resorting to this... antonagestam's answer solved my problem in literally 2 seconds
– Tony Park
Jan 21 '14 at 11:07
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Convert python datetime to epoch with strftime
...h as returned by .now()) to epoch timestamp (returned by mktime()). If you read it; you understand why UTC input (used in the question) is (much) more preferable than a naive datetime object representing local time
– jfs
Feb 18 '15 at 22:34
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How to print to console when using Qt
...bug() etc actually do, this will be by far the superior answer (IMO it's already superior since OP is asking for something to replace std::cout, but 40ish voters appear not to agree).
– Kyle Strand
Mar 9 '15 at 21:00
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Is there a way to access method arguments in Ruby?
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Since Ruby 2.1 you can use binding.local_variable_get to read value of any local variable, including method parameters (arguments). Thanks to that you can improve the accepted answer to avoid evil eval.
def foo(x, y)
method(__method__).parameters.map do |_, name|
binding.loc...
Why number 9 in kill -9 command in unix? [closed]
...ses but also send a signal to a process.
If you are really curious you can read here and here.
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Where is the .NET Framework 4.5 directory?
...ine... the clue was that binding redirects were added in VS 2013 (for that read .net framework 4.5). If you open up a vs command prompt you'll see it now gets it from program files as the other article mentions. Whereas I was using a batch file on my path which linked to the old version.
Version ...
Click event doesn't work on dynamically generated elements [duplicate]
...d a "direct" binding which will only attach the handler to elements that already exist. It won't get bound to elements created in the future. To do that, you'll have to create a "delegated" binding by using on().
Delegated events have the advantage that they can process events from descendant e...
How to remove globally a package from Composer?
... or update as if you were running them from the COMPOSER_HOME directory.
Read the related documentation here: http://getcomposer.org/doc/03-cli.md#global
COMPOSER_HOME depends on your system (on Linux it's ~/.composer), see http://getcomposer.org/doc/03-cli.md#composer-home for more details.
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Return a value if no rows are found in Microsoft tSQL
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I read all the answers here, and it took a while to figure out what was going on. The following is based on the answer by Moe Sisko and some related research
If your SQL query does not return any data there is not a field wit...