大约有 40,000 项符合查询结果（耗时：0.0486秒） [XML]
MySQL - SELECT WHERE field IN (subquery) - Extremely slow why?
...
Subqueries vs joins
http://www.scribd.com/doc/2546837/New-Subquery-Optimizations-In-MySQL-6
share
|
improve this answer
|
foll...
What's “tools:context” in Android layout files?
...
According to the Android Tools Project Site:
tools:context
This attribute is typically set on the root element in a layout XML file, and records which activity the layout is associated with (at designtime, since obviously a layout can be used by more than one ...
ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result”
...5 = 3
2.7 = 3
You can check the RoundingMode information here: http://www.javabeat.net/precise-rounding-of-decimals-using-rounding-mode-enumeration/
share
|
improve this answer
|
...
What does a \ (backslash) do in PHP (5.3+)?
...
The \ is used in PHP 5.3 for namespaces. See http://www.php.net/manual/en/language.namespaces.rationale.php for more information on namespaces and PHP.
share
|
improve this an...
Running a cron job at 2:30 AM everyday
...
30 2 * * * wget https://www.yoursite.com/your_function_name
The first part is for setting cron job and the next part to call your function.
share
|
...
Format JavaScript date as yyyy-mm-dd
...
I've searched high and low across SO and other sites to find the best way to deal with timezone issues with dates in JS, and hands down, this is by far the easiest and the best. Thank you!
– HartleySan
Mar 31 at 13:44
...
Android: What's the difference between Activity.runOnUiThread and View.post?
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
vim “modifiable” is off
...y git repository, do an
ls
inside it. i got something like this:
~=+www-halo=+test=+lib=+Halo=+Return2=+HeaderTest.php=
~=+www-halo=+test=+lib=+Halo=+Service=+LandmarkTest.php=
~=+www-halo=+test=+lib=+Halo=+Transaction=+AuthnetTest.php=
Which is totally useless to you since you have a diffe...
Best practices for adding .gitignore file for Python projects? [closed]
....spyproject
# Rope project settings
.ropeproject
# mkdocs documentation
/site
# mypy
.mypy_cache/
Reference: python .gitignore
share
|
improve this answer
|
follow
...
What is the correct syntax of ng-include?
... that route in ng-include .. if i use a route in src= it just loads entire site not just the view :( if i load it by relative path to html, it does not load the controller with the view
– Sonic Soul
Feb 6 '18 at 13:05
...