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Why are joins bad when considering scalability?
...em through de-normalisation but if used correctly (joining on columns with appropriate indexes an so on) they are not inherently slow.
De-normalisation is one of many optimisation techniques you can consider if your well designed database schema exhibits performance problems.
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Are there conventions on how to name resources?
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If, however, I had two lists then I would use the more specific @id/list_apple and @id/list_orange
So generic (ids, ...) gets reused in the R.java file while the unique ones (sometimes gets reused) get prefixed with generic ones separated by an underscore.
The underscore is one thing, I obser...
How To Get IPython Notebook To Run Python 3?
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In Anaconda "launcher.app" there is “Environment:” pull down menu.
The default environment is called "root". In order to launch application using another environment, just select the desired environment from the list, to make it active.
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How to get current location in Android [duplicate]
...m/reference/android/location/…, float,android.location.Criteria, android.app.PendingIntent)
– Axxiss
Feb 14 '14 at 10:56
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PHP: Storing 'objects' inside the $_SESSION
...jump to another page I still have my object. Now before I start using this approach I would like to find out if it is really such a good idea or if there are potential pitfalls involved.
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Does Python have a package/module management system?
...reat news! Python deserves a package manager, I hope the devs can make it happen.
– Colonel Panic
Jul 16 '13 at 12:14
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Parse email content from quoted reply
...nd did not interleave it (as was the old style on the internet). If that happens, good luck. I hope this helps some of you out there!
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What do the terms “CPU bound” and “I/O bound” mean?
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so the memory bus quickly becomes the bottleneck, not the CPU.
This happens because adding two numbers takes a single CPU cycle, memory reads take about 100 CPU cycles in 2016 hardware.
So the CPU work done per byte of input data is too small, and we call this an IO-bound process.
The only way...
Re-enabling window.alert in Chrome
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For our application there are over 150 confirm windows that rely on the synchronous native confirms. We are planning on changing it, but that would result in us spending two weeks to go through each one of these cases. Plus testing,...
Tomcat VS Jetty [closed]
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I think tomcat is more disscussed and supported by application, Jetty is portable and can be embedded in an application. and Jetty has good continuations.
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