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Find nearest latitude/longitude with an SQL query

I have latitude and longitude and I want to pull the record from the database, which has nearest latitude and longitude by the distance, if that distance gets longer than specified one, then don't retrieve it. ...
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Where should signal handlers live in a django project?

...started implementing signal listeners in a django project. While I understand what they are and how to use them. I am having a hard time figuring out where I should put them. The documentation from the django site has this to say: ...
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How to specify new GCC path for CMake

... Do not overwrite CMAKE_C_COMPILER, but export CC (and CXX) before calling cmake: export CC=/usr/local/bin/gcc export CXX=/usr/local/bin/g++ cmake /path/to/your/project make The export only needs to be done once, the first time you configure the project, then those values ...
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The application may be doing too much work on its main thread

I am new to Android SDK/API environment. It's the first I am trying to draw a plot/chart. I tried running different kinds of sample codes the emulator using 3 different free libraries, nothing is showing in the layout screen. The logcat is repeating the following message: ...
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What's the best way to store Phone number in Django models

... You might actually look into the internationally standardized format E.164, recommended by Twilio for example (who have a service and an API for sending SMS or phone-calls via REST requests). This is likely to be the most universal way to store phone numbers, in particular ...
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Setting an image for a UIButton in code

... use anything else than UIButtonTypeCustom, the image will be blue in iOS7 and 8. – Apfelsaft Sep 16 '14 at 14:41 2 ...
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Why JSF calls getters multiple times

... is caused by the nature of deferred expressions #{} (note that "legacy" standard expressions ${} behave exactly the same when Facelets is used instead of JSP). The deferred expression is not immediately evaluated, but created as a ValueExpression object and the getter method behind the expression i...
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Safe String to BigDecimal conversion

... the string. Let's say I have this String: "1,000,000,000.999999999999999" and I want to get a BigDecimal out of it. What is the way to do it? ...
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Bootstrap combining rows (rowspan)

I am testing Twitter Bootstrap and got stuck with basic scaffolding with rows. I revisited their documentation number of times and I can see nesting columns where you can basically nest columns within a column but I cannot locate the capability of combining rows into one and have it aligned with ...
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A type for Date only in C# - why is there no Date type?

...tes a time of day as well. I want to make explicit that certain variables and method-arguments are date-based . Hence I can't use the DateTime.Date property ...