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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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Twitter Bootstrap 3: how to use media queries?

...ecause "extra small" is the default. I.e. you would first code the XS size and then have these media overrides afterwards. @media(min-width:576px){} @media(min-width:768px){} @media(min-width:992px){} @media(min-width:1200px){} Update 2019-02-11: BS3 info is still accurate as of version 3.4.0, up...
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Threading in a PyQt application: Use Qt threads or Python threads?

...humb might be to use QThreads if you're going to interact somehow with Qt, and use Python threads otherwise. And some earlier comment on this subject from PyQt's author: "they are both wrappers around the same native thread implementations". And both implementations use GIL in the same way. ...
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Are Git forks actually Git clones?

...s) psychological willingness to forgo future merges. There is no fork command in Git, right? 10 Answers ...
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Why am I getting this error: No mapping specified for the following EntitySet/AssociationSet - Entit

... state that the SSDL does not exist. You can drag entities, associate them and so forth and yet, if you take a look at the SSDL on the EDMX file, you will see that none of the entities have an associated storage table in the SSDL. That changes when you click the Generate Database From Model context...
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When should you branch?

...ing out the following article, which explains the principles of branching, and when to use them: Ned Batchelder - Subversion branching quick start share | improve this answer | ...
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What is an intuitive explanation of the Expectation Maximization technique? [closed]

... here. Suppose we have some data sampled from two different groups, red and blue: Here, we can see which data point belongs to the red or blue group. This makes it easy to find the parameters that characterise each group. For example, the mean of the red group is around 3, the mean of the blue...
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What does “program to interfaces, not implementations” mean?

... Interfaces are just contracts or signatures and they don't know anything about implementations. Coding against interface means, the client code always holds an Interface object which is supplied by a factory. Any instance returned by the factory would be of type In...
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Transactions in REST?

...er. In the same way that you can add multiple items to a shopping basket and then submit that basket to process the order, you can add Bob's account entry to the transaction wrapper and then Bill's account entry to the wrapper. When all the pieces are in place then you can POST/PUT the transacti...
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Relationship between SciPy and NumPy

...numpy as _num from numpy import oldnumeric from numpy import * from numpy.random import rand, randn from numpy.fft import fft, ifft from numpy.lib.scimath import * The log10 function you get in scipy comes from numpy.lib.scimath. Looking at that code, it says: """ Wrapper functions to more user-f...