大约有 49,000 项符合查询结果（耗时：0.0693秒） [XML]
LEFT JOIN only first row
...n't at this point a simple sub-query be better? Cause now you have a join, and a sub-query. Just asking cause I am looking for solution to same problem :)
– galdikas
Feb 11 '16 at 10:36
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How can I tell if I'm running in 64-bit JVM or 32-bit JVM (from within a program)?
... the HotSpot FAQ:
When writing Java code, how do I distinguish between 32 and 64-bit operation?
There's no public API that allows you to distinguish between 32 and 64-bit operation. Think of 64-bit as just another platform in the write once, run anywhere tradition. However, if you'd like to write c...
Should I store entire objects, or pointers to objects in containers?
Designing a new system from scratch. I'll be using the STL to store lists and maps of certain long-live objects.
10 Answer...
file_put_contents - failed to open stream: Permission denied
...77 database (from the directory that contains the database folder)
apache and nobody will have access to this directory if it is chmodd'ed correctly.
The other thing to do is echo "getcwd()". This will show you the current directory, and if this isn't '/something.../database/' then you'll need to ...
Copy file(s) from one project to another using post build event…VS2010
...ProjectDir)Views\Home\Index.cshtml" "$(SolutionDir)MEFMVCPOC\Views\Home"
and if you want to copy entire folders:
xcopy /E /Y "$(ProjectDir)Views" "$(SolutionDir)MEFMVCPOC\Views"
Update: here's the working version
xcopy "$(ProjectDir)Views\ModuleAHome\Index.cshtml" "$(SolutionDir)MEFMVCPOC\Vi...
CSS hide scroll bar if not needed
...flow-y:scroll; if not needed. What I mean is that I am building a website and I have a main area which posts will be displayed and I want to hide the scroll bar if content does not exceed the current width.
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Change font size macvim?
I'm using macvim and I love it. I also happen to really like the default font.
7 Answers
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Git status - is there a way to show changes only in a specific directory?
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No problem, and possibly - the newer versions of git do seem to make things easier.
– Sam Doidge
Dec 17 '12 at 16:12
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Play an audio file using jQuery when a button is clicked
...e audio element dynamically, when its loaded you can start it with .play() and pause it with .pause().
Things we used
We will use canplay event to detect our file is ready to be played.
There is no .stop() function for audio elements. We can only pause them. And when we want to start from the be...
html select option separator
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The disabled option approach seems to look the best and be the best supported. I've also included an example of using the optgroup.
optgroup (this way kinda sucks):
<select>
<optgroup>
<option>First</option>
</optgroup>
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