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Fastest Way to Find Distance Between Two Lat/Long Points
...s of Geometry data types in MyISAM table. As of Mysql 5.7.5, InnoDB tables now also support SPATIAL indices.
Create a SPATIAL index on these points
Use MBRContains() to find the values:
SELECT *
FROM table
WHERE MBRContains(LineFromText(CONCAT(
'('
, @lon + 10 / ( 111.1 / cos...
When should Flask.g be used?
...terns, as linked by Markus, explains some of the changes to g in 0.10:
g now lives in the application context.
Every request pushes a new application context, wiping the old one, so g can still be used to set flags per-request without change to code.
The application context is popped after teardow...
Multiple arguments vs. options object
... the lifetime of your runtime, e.g. your webpage) with the same settings, known at development time (in short: when your option values are kinda hardcoded in your sourcecode).
– Ger Hobbelt
Sep 20 '15 at 12:22
...
What's the difference between django OneToOneField and ForeignKey?
...the name of the reporter.
In [8]: A1.reporter.first_name
Out[8]: 'Rick'
Now create the Reporter object R2 by running the following python code.
In [9]: R2 = Reporter.objects.create(first_name='Harry')
In [10]: R2.save()
Now try to add R2 to the Article object A1.
In [13]: A1.reporter.add(R2)...
Lock-free multi-threading is for real threading experts
...accesses, to hide main memory latency and make better use of their cache.
Now, it is sure against intuition that a sequence of code does not flow "top-down", instead it runs as if there was no sequence at all - and may be called "devil's playground". I believe it is infeasible to give an exact answ...
How do I get a div to float to the bottom of its container?
...m.Microsoft.BasicImage(rotation=2);
JSfiddle: http://jsfiddle.net/wcneY/
Now rotate all the elements that float left (give them a class) 180 degrees to put them straight again. Voila! they float to the bottom.
share
...
Using the RUN instruction in a Dockerfile with 'source' does not work
...
And now how do I downvote the original answer and upvote the edit by 'a concerned'?
– Slava
Apr 24 '19 at 10:12
...
How to generate an entity-relationship (ER) diagram using Oracle SQL Developer
... select New Relational Model to open a blank model diagram panel. You’re now starting at the same place as someone who’s using the standalone Oracle SQL Developer Data Modeler.
Importing Your Data Dictionary
Importing Your Data Dictionary
A design in Oracle SQL Developer Data Modeler...
How to apply multiple styles in WPF
...der the heading "How can I set multiple styles in WPF?"
That blog is dead now, so I'm reproducing the post here
WPF and Silverlight both offer the ability to derive a Style from another Style through the “BasedOn” property. This feature enables developers to organize their styles using a hi...
jQuery: Return data after ajax call success [duplicate]
...#test-arrow_functions
UPDATE (2017)
There is an even newer syntax right now called async functions with a new await keyword that instead of this code:
functionReturningPromise()
.then(data => console.log('Data:', data))
.catch(error => console.log('Error:', error));
lets you writ...