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Get records with max value for each group of grouped SQL results
...max() etc, and also the problems of returning multiple rows when there are more than one with the same maximum value (as the other answers would do)
Note: This is a mysql-only solution. All other databases I know will throw an SQL syntax error with the message "non aggregated columns are not listed ...
What are the benefits of functional programming? [closed]
...function has been done on all the elements."
Functional programming moves more basic programming ideas into the compiler, ideas such as list comprehensions and caching.
The biggest benefit of Functional programming is brevity, because code can be more concise. A functional program doesn't create a...
Thread vs ThreadPool
...ing in, then the thread pool will tune itself to your workload by creating more threads in the pool by the above process so that there are a larger number of thread available to process requests
check Here for more in depth info on how the thread pool functions under the hood
Creating a new threa...
Visual Studio : short cut Key : Duplicate Line
...fferent key combination, or find it in the menu:
See this reference for more information.
Pre VS2017, built-in method using clipboard
As @cand mentioned, you can just do Ctrl + C ; Ctrl + V.
Ctrl + C will copy the line if nothing is selected.
Macro solution (pre VS2017)
If you'd like to impl...
Exception 'open failed: EACCES (Permission denied)' on Android
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Try-catch speeding up my code?
...cessary to generate a local. If it allows the JITter to produce measurably more performant code, perhaps the C# compiler should be a bit more careful about generating unnecessary locals...
– Timwi
Jan 25 '12 at 20:37
...
How do I rename all folders and files to lowercase on Linux?
...o move files into non-existing directories (e.g. "A/A" into "a/a").
Or, a more verbose version without using "rename".
for SRC in `find my_root_dir -depth`
do
DST=`dirname "${SRC}"`/`basename "${SRC}" | tr '[A-Z]' '[a-z]'`
if [ "${SRC}" != "${DST}" ]
then
[ ! -e "${DST}" ] &...
How to send a GET request from PHP?
...
Unless you need more than just the contents of the file, you could use file_get_contents.
$xml = file_get_contents("http://www.example.com/file.xml");
For anything more complex, I'd use cURL.
...
What is your most productive shortcut with Vim?
...rstand basic up, down, left, and right cursor movements then vi will be no more productive than a copy of "notepad" for you. (Okay, you'll still have syntax highlighting and the ability to handle files larger than a piddling ~45KB or so; but work with me here).
vi has 26 "marks" and 26 "registers."...
What is the difference between Digest and Basic Authentication?
...have less work to do and take less time to deliver, so developers could be more likely to want to use your API
Unlike Digest, you can store the passwords on the server in whatever encryption method you like, such as bcrypt, making the passwords more secure
Just one call to the server is needed to g...