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How to select only 1 row from oracle sql?
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SELECT user FROM Dual WHERE ROWNUM = 1
http://docs.oracle.com/cd/B19306_01/server.102/b14200/pseudocolumns009.htm
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SET versus SELECT when assigning variables?
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edited Jan 5 '16 at 16:30
Luke Girvin
12.5k88 gold badges5555 silver badges7878 bronze badges
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Remove useless zero digits from decimals in PHP
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$num + 0 does the trick.
echo 125.00 + 0; // 125
echo '125.00' + 0; // 125
echo 966.70 + 0; // 966.7
Internally, this is equivalent to casting to float with (float)$num or floatval($num) but I find it simpler.
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How do I obtain the frequencies of each value in an FFT?
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The first bin in the FFT is DC (0 Hz), the second bin is Fs / N, where Fs is the sample rate and N is the size of the FFT. The next bin is 2 * Fs / N. To express this in general terms, the nth bin is n * Fs / N.
So if your sample rate, Fs is say 44.1 kHz a...
Can't find the PostgreSQL client library (libpq)
I'm trying to install PostgreSQL for Rails on Mac OS X 10.6. First I tried the MacPorts install but that didn't go well so I did the one-click DMG install. That seemed to work.
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Event system in Python
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PyPI packages
As of June 2020, these are the event-related packages available on PyPI,
ordered by most recent release date.
RxPy3 1.0.1: June 2020
pluggy 0.13.1: June 2020 (beta)
Louie 2.0: Sept 2019
python-dispatch 0.1.2: Feb 2019
PyPubSub 4.0.3: Ja...
Remove border from IFrame
... capital ‘B’).
So it would look like:
<iframe src="myURL" width="300" height="300" frameBorder="0">Browser not compatible.</iframe>
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Pull all commits from a branch, push specified commits to another
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answered May 19 '09 at 4:53
bdonlanbdonlan
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SOAP server and client application VCL+indy demo for Delphi XE?
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40
I have posted the complete set of demos for SOAP on CodeCentral as item 28789.
These contain ev...