大约有 40,000 项符合查询结果（耗时：0.0647秒） [XML]
How do I write LINQ's .Skip(1000).Take(100) in pure SQL?
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But this will first select all and then from that selection take only 10 right? Or will the first query/view have only 10 already?
– Tadej
Jan 29 '18 at 13:53
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How to create local notifications?
...thorizationOptionAlert)
completionHandler:^(BOOL granted, NSError * _Nullable error) {
if (!error) {
NSLog(@"request authorization succeeded!");
[self showAlert];
}
}];
-(void)showAlert {
UIAlertController *objAlertControlle...
How to get existing fragments when using FragmentPagerAdapter
...agerAdapter , as a helper class that implements the management of tabs and all details of connecting a ViewPager with associated TabHost . I have implemented FragmentPagerAdapter just as same as it is provided by the Android sample project Support4Demos .
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When to use .First and when to use .FirstOrDefault with LINQ?
I've searched around and haven't really found a clear answer as to when you'd want to use .First and when you'd want to use .FirstOrDefault with LINQ.
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Check if a Windows service exists and delete in PowerShell
...ee Remove-Service doc)
For example:
$service = Get-WmiObject -Class Win32_Service -Filter "Name='servicename'"
$service.delete()
Or with the sc.exe tool:
sc.exe delete ServiceName
Finally, if you do have access to PowerShell 6.0:
Remove-Service -Name ServiceName
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Node.js vs .Net performance
...FAST and handling lots of LOAD are two different things. A server that's really FAST at serving one request per second might totally croak if you send it 500 requests per second (under LOAD).
You also have to consider static (and cached) vs dynamic pages. If you're worried about static pages, then...
Career day in kindergarten: how to demonstrate programming in 20 minutes? [closed]
...a lot of paper towels on a table, and got out a loaf of (cheap) bread, a small tub of butter, a small jar of jelly, and a plastic butter knife.
I said to the kids, "How many of you think computers are smart?" Most of them raised their hands. I said, "Computers are really dumb. People are smart. ...
RESTful Login Failure: Return 401 or Custom Response
...happened.
401 Unauthorized
Similar to 403 Forbidden, but specifically for use when authentication is required and has failed or has not yet been provided. The response must include a WWW-Authenticate header field containing a challenge applicable to the requested resource.
Your confusion...
Can I use a :before or :after pseudo-element on an input field?
...s on .after
To append your content with javascript. This will work across all browsers.
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How to access object attribute given string corresponding to name of that attribute
...ay prefer to use a generalized getter method like so:
class Test:
def __init__(self):
self.attr1 = 1
self.attr2 = 2
def get(self,varname):
return getattr(self,varname)
t = Test()
x = "attr1"
print ("Attribute value of {0} is {1}".format(x, t.get(x)))
Outputs:
At...