大约有 15,400 项符合查询结果（耗时：0.0396秒） [XML]
MySQL: Fastest way to count number of rows
...est way, but there is a case, where COUNT(*) doesn't really fit - when you start grouping results, you can run into problem, where COUNT doesn't really count all rows.
The solution is SQL_CALC_FOUND_ROWS. This is usually used when you are selecting rows but still need to know the total row count (f...
Insert new item in array on any position in PHP
...osition where the new array will be inserted into. Please mind that arrays start at 0
*/
return array_slice($array, 0, $position, TRUE) + $insert + array_slice($array, $position, NULL, TRUE);
}
Call example:
$array = insertArrayAtPosition($array, array('key' => 'Value'), 3);
...
How to fully remove Xcode 4
... I tried to install 4.4 on top of 4.2 but the program crashed at startup. So I uninstalled 4.4, ran your command, reinstalled 4.4, and now things appear to work properly. Thank you
– Giuseppe
Sep 11 '12 at 12:46
...
Maven2: Missing artifact but jars are in place
From now to then, my Maven 2 started to mess around.
33 Answers
33
...
undefined reference to boost::system::system_category() when compiling
...ourse still needed if you explicitly use some of the library's features).
Starting from Boost 1.66 and this commit, this behavior is now the default, so hopefully fewer and fewer users should need this answer.
As noticed by @AndrewMarshall, an alternative is to define BOOST_ERROR_CODE_HEADER_ONLY ...
What is the perfect counterpart in Python for “while not EOF”
...t a time from the file, and iteration stops when openfileobject.read(1024) starts returning empty byte strings.
share
|
improve this answer
|
follow
|
...
Download JSON object as a file from browser
...
how can i make this download start on the page load. whenever a user browse the page url he gets prompt for download
– user388969
Feb 16 '17 at 0:08
...
comparing sbt and Gradle [closed]
...l built-in tasks
sbt default lifecycle is pretty useful and can get novice started with pretty less effort
share
|
improve this answer
|
follow
|
...
how to remove shared preference while application uninstall in android
...5 running with Android 6 is not deleting the sharedpreferences. I had to restart the device after uninstall and the sharedpreferences is gone now
– Santhana
Jan 28 '16 at 20:54
2
...
cleanest way to skip a foreach if array is empty [duplicate]
...If your type is getting inconsistent you are looking for trouble. When you start using the is_* function it tend to be spread all over your code. And after all you never know if the is_* is necessary and your code is being unreadable. I suggest you to fix the origin of the type inconsistency instead...