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Fastest Way to Find Distance Between Two Lat/Long Points
I currently have just under a million locations in a mysql database all with longitude and latitude information.
15 Answers...
How do I print the type of a variable in Rust?
...r
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= note: expected type `()`
found type `{float}`
Or call an invalid method:
let mut my_number = 32.90;
my_number.what_is_this();
error[E0599]: no method named `what_is_this` found for type `{float}` in the current scope
--> src/main.rs:3:15
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3 | my_number.what_is_...
How to perform OR condition in django queryset?
...man Prasad
72.6k4545 gold badges126126 silver badges163163 bronze badges
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Longest line in a file
...ing for a simple way to find the length of the longest line in a file. Ideally, it would be a simple bash shell command instead of a script.
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Environment variable to control java.io.tmpdir?
...s.
On Windows, OpenJDK's get_temp_directory() function makes a Win32 API call to GetTempPath(); this is how on Windows, Java reflects the value of the TMP environment variable.
On Linux and Solaris, the same get_temp_directory() functions return a static value of /tmp/.
I don't know if the actual...
When saving, how can you check if a field has changed?
...tching and saving.
– dalore
Feb 24 '16 at 13:01
2
Stop telling people to check pk is not None it ...
Insert, on duplicate update in PostgreSQL?
...it would be much slower, because each upsert would be its' own individual call into the database.
– baash05
Mar 1 '12 at 0:27
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Calling constructors in c++ without new
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edited Apr 27 '10 at 16:18
answered Apr 27 '10 at 16:12
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simple HTTP server in Java using only Java SE API
... GET/POST) in Java using just the Java SE API, without writing code to manually parse HTTP requests and manually format HTTP responses? The Java SE API nicely encapsulates the HTTP client functionality in HttpURLConnection, but is there an analog for HTTP server functionality?
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Remove by _id in MongoDB console
... This is _reidiculous.
– Guy
Jul 16 '16 at 8:05
If the _id field is not automatically generated (i.e. it is not an ...