大约有 40,000 项符合查询结果(耗时:0.0269秒) [XML]
Using DISTINCT and COUNT together in a MySQL Query
...
use
SELECT COUNT(DISTINCT productId) from table_name WHERE keyword='$keyword'
share
|
improve this answer
|
follow
...
What is default color for text in textview?
...
Get these values from attributes:
int[] attrs = new int[] { android.R.attr.textColorSecondary };
TypedArray a = getTheme().obtainStyledAttributes(R.style.AppTheme, attrs);
DEFAULT_TEXT_COLOR = a.getColor(0, Color.RED);
a.recycle();
...
CardView layout_width=“match_parent” does not match parent RecyclerView width
...
The docs for inflate:
Inflate a new view hierarchy from the specified xml resource. Throws
InflateException if there is an error.
Parameters
resource ID for an XML layout resource to load (e.g.,
R.layout.main_page) root
view to be the parent o...
Resizing an iframe based on content
... var regexS = "[\\?&]"+name+"=([^&#]*)";
var regex = new RegExp( regexS );
var results = regex.exec( window.location.href );
if( results == null )
return "";
else
return results[1];
}
</script>
</body>
</h...
Can you determine if Chrome is in incognito mode via a script?
...cognito
aren't recorded in your browsing and
download histories.
All new cookies are deleted after you close all incognito windows
that you've opened.
As you can see the differences between normal browsing and incognito happen after you visit the webpage, hence there is nothing that bro...
Bold & Non-Bold Text In A Single UILabel?
...e attributed string we don't need to play with CoreText anymore :) We have new classes in obj-c Foundation.framework like NSParagraphStyle and other constants that will make our life easier. Yay!
So, if we have this string:
NSString *text = @"Updated: 2012/10/14 21:59"
We only need to create the...
Kill child process when parent process is killed
I'm creating new processes using System.Diagnostics.Process class from my application. I want this processes to be killed when/if my application has crashed. But if I kill my application from Task Manager, child processes are not killed. Is there any way to make child processes dependent on ...
Difference between natural join and inner join
...trongly discourage their use. The danger comes from inadvertently adding a new column, named the same as another column ...
That is, all NATURAL joins may be written as INNER joins (but the converse is not true). To do so, just create the predicate explicitly -- e.g. USING or ON -- and, as Jonatha...
how to replicate pinterest.com's absolute div stacking layout [closed]
...
@hollandben's link is dead, new link : benholland.me/javascript/2012/02/20/…
– Lukmo
Oct 17 '14 at 10:18
|...
System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()
... obviously the most efficient since it does not even create an object, but new Date() is really just a thin wrapper about a long, so it is not far behind. Calendar, on the other hand, is relatively slow and very complex, since it has to deal with the considerably complexity and all the oddities that...
