大约有 12,000 项符合查询结果（耗时：0.0203秒） [XML]
SQL Server: Difference between PARTITION BY and GROUP BY
...erCount
from Orders
group by customerId
But partition by just works on a window function, like row_number:
select row_number() over (partition by customerId order by orderId)
as OrderNumberForThisCustomer
from Orders
A group by normally reduces the number of rows returned by rolling them up...
How to find out the number of CPUs using python
... return res
except (AttributeError, ValueError):
pass
# Windows
try:
res = int(os.environ['NUMBER_OF_PROCESSORS'])
if res > 0:
return res
except (KeyError, ValueError):
pass
# jython
try:
from java.lang import Runtim...
How can I get the current page's full URL on a Windows/IIS server?
I moved a WordPress installation to a new folder on a Windows/ IIS server. I'm setting up 301 redirects in PHP, but it doesn't seem to be working. My post URLs have the following format:
...
What are the typical reasons Javascript developed on Firefox fails on IE? [closed]
...partially loaded documents: It’s a good idea to add your JavaScript in a window.onload or similar event as IE doesn’t support many operations in partially loaded documents.
Differing attributes: In CSS, it's elm.style.styleFloat in IE vs elm.style.cssFloat in Firefox. In <label> tags the f...
Detect Safari using jQuery
...ing a mix of feature detection and Useragent string:
var is_opera = !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;
var is_Edge = navigator.userAgent.indexOf("Edge") > -1;
var is_chrome = !!window.chrome && !is_opera && !is_Edge;
var is_explorer= t...
Any way to write a Windows .bat file to kill processes? [closed]
...
As TASKKILL might be unavailable on some Home/basic editions of windows here some alternatives:
TSKILL processName
or
TSKILL PID
Have on mind that processName should not have the .exe suffix and is limited to 18 characters.
Another option is WMIC :
wmic Path win32_process Where "C...
Hosting ASP.NET in IIS7 gives Access is denied?
...
worked like a charm! Added permissions to IUSR thought windows explorer folder properties, security tab.
– Filipe Borges
Mar 25 '15 at 14:32
3
...
How do I automatically scroll to the bottom of a multiline text box?
... Note that that method is in the TextBoxBase class in the System.Windows.Controls.Primitives namespace (PresentationFramework assembly, WPF). This method does not exist and will not work in WinForms, whose TextBox class inherits from TextBoxBase in the System.Windows.Forms namespace (Syste...
Generating CSV file for Excel, how to have a newline inside a value
...sted on Excel 2000
If you open the file by double-clicking on its name in Windows Explorer, everything works OK.
If you open it from within Excel, the results vary:
You have only ASCII characters in the file (and no BOM): works.
You have non-ASCII characters (encoded in UTF-8) in the file, with ...
Download File Using jQuery
...nction(e) {
e.preventDefault(); //stop the browser from following
window.location.href = 'uploads/file.doc';
});
<a href="no-script.html">Download now!</a>
Even if there's no Javascript, at least this way the user will get some feedback.
...