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SQL query to group by day
... edited Jan 3 '14 at 14:15
Gone Coding
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answered Nov 1 '09 at 21:22
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Does “git fetch --tags” include “git fetch”?
...ts from the included perf script, which sets up a situation similar to the one described above:
Test HEAD^ HEAD
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5550.4: fetch 11.21(10.42+0.78) 0.08(0.04+0.02) -99.3%
That applies only for a situation where:
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dd: How to calculate optimal blocksize? [closed]
...have said, there is no universally correct block size; what is optimal for one situation or one piece of hardware may be terribly inefficient for another. Also, depending on the health of the disks it may be preferable to use a different block size than what is "optimal".
One thing that is pretty r...
When and why are database joins expensive?
...d water.
Chris Date, who in company with Dr Ted Codd was the original proponent of the relational data model, ran out of patience with misinformed arguments against normalisation and systematically demolished them using scientific method: he got large databases and tested these assertions.
I thin...
Remove empty elements from an array in Javascript
...gs, the above function wouldn't remove elements that are an empty string.
One typical pattern that I see often used is to remove elements that are falsy, which include an empty string "", 0, NaN, null, undefined, and false.
You can pass to the filter method, the Boolean constructor function, or re...
Best way to load module/class from lib folder in Rails 3?
... edited Jul 3 '14 at 5:49
typeoneerror
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answered Oct 18 '10 at 18:49
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Will Try / Finally (without the Catch) bubble the exception?
...an exception, of course, in which case that will effectively "replace" the one that was originally thrown.
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Failed to allocate memory: 8
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One more fix to add. Sometimes, setting RAM to lower values doesn't work. It that case, try to launch emulator from commandline with something like emulator-x86 -avd <your_avd_name>
– Mykhailo Gaid...
Can't resize UIView in IB
...nabled. Not exactly sure why this is, so would appreciate feedback from anyone who knows why exactly this is - there must be a good reason.
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Where are the recorded macros stored in Notepad++?
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It's possible to merge several macro in one (the operation will be done one after the other). It's very intuitive: just remove the end macro tags after the first one + the tags introducing the second one, (only the first macro will appear on notepad++). Launch it, ...