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MYSQL OR vs IN performance
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I needed to know this for sure, so I benchmarked both methods. I consistenly found IN to be much faster than using OR.
Do not believe people who give their "opinion", science is all about testing and evidence.
I ran a loop of 1000x the ...
Make an HTTP request with android
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Note: The Apache HTTP Client bundled with Android is now deprecated in favor of HttpURLConnection. Please see the Android Developers Blog for more details.
Add <uses-permission android:name="android.permission.INTERNET" /> to your manifest.
You would then retrieve a web...
How to create a SQL Server function to “join” multiple rows from a subquery into a single delimited
... i became a little confused whilst modifiny this code, so have now posted my own question
– James Parish
May 24 '11 at 16:14
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Is it possible to insert multiple rows at a time in an SQLite database?
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update
As BrianCampbell points out here, SQLite 3.7.11 and above now supports the simpler syntax of the original post. However, the approach shown is still appropriate if you want maximum compatibility across legacy databases.
original answer
If I had privileges, I would bump river's repl...
How do I check if an integer is even or odd? [closed]
... platform targets, and gets a different result, I'd be very interested to know.
Finally, the modulo version is guaranteed by the standard to work whether the integer is positive, negative or zero, regardless of the implementation's representation of signed integers. The bitwise-and version is not. ...
psql: FATAL: Peer authentication failed for user “dev”
... cipher: ECDHE-RSA-AES256-GCM-SHA384, bits: 256, compression: off) You are now connected to database "glossary" as user "john" on host "localhost" at port "5432". it worked.
– look
Dec 4 '16 at 2:26
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Why can't Python find shared objects that are in directories in sys.path?
...to my user to read the library after setting the LD_LIBRARY_PATH variable. Now it finally works.
– José Ricardo
Jul 31 '13 at 13:41
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Calculate the execution time of a method
...sw.Stop();
Example results
132ms
4ms
3ms
3ms
2ms
3ms
34ms
2ms
1ms
1ms
Now you're wondering; "well why did it take 132ms the first time, and significantly less the rest of the time?"
The answer is that Stopwatch does not compensate for "background noise" activity in .NET, such as JITing. Theref...
ssh remote host identification has changed
...gen man page:
-R hostname Removes all keys belonging to hostname from a known_hosts file. This option is useful to delete hashed hosts (see the -H option above).
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How do I increase the scrollback buffer in a running screen session?
...defscrollback and not scrollback (def stand for default)
What you need to know is if the file is not created ! You create it !
> cd ~ && vim .screenrc
And you add defscrollback 1000000 to it!
Or in one command
> echo "defscrollback 1000000" >> .screenrc
(if not created already)...