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Should I index a bit field in SQL Server?
...ndex would be good because it will order them by value and then be able to select the small working set very quickly. If you agree, add that and I will accept it.
– jeremcc
Oct 23 '08 at 21:01
...
Group by multiple columns in dplyr, using string vector input
...cumentation here). This lets you use the same functions you would use with select, like so:
data = data.frame(
asihckhdoydkhxiydfgfTgdsx = sample(LETTERS[1:3], 100, replace=TRUE),
a30mvxigxkghc5cdsvxvyv0ja = sample(LETTERS[1:3], 100, replace=TRUE),
value = rnorm(100)
)
# get the column...
Unable to launch the IIS Express Web server, Failed to register URL, Access is denied
...here is one for intermediates,
Solutions Explorer
Right click on project select Unload project
Again Right click and select Edit ProjectName.csproj
remove these 3 lines
<DevelopmentServerPort>0</DevelopmentServerPort>
<DevelopmentServerVPath>/</DevelopmentServerVPath>
&l...
“Unknown class in Interface Builder file” error at runtime
...n't need to recreate the files.
Using XCode 4, in the Project Navigator, select the .m file that contains the class that it is complaining about
Go to View->Utilities->Show File Inspector(this will show the File Inspector to the right, with that .m-file info)
Open the Target Membership secti...
Is there a way to get colored text in Github Flavored Markdown? [duplicate]
...port { MovieService } from './services/movie.service';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css'],
providers: [ MovieService ]
})
export class AppComponent {
title = 'app works!';
}
```
No "pre" or "code...
Cannot open backup device. Operating System error 5
...
Go to the SQL server folder in start menu and click configuration tools
Select SQL Server configuration manager
On SQL server services, on the desired instance change the (Log On as) to local system
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Hidden features of HTML
...ost people I speak to don't tend to realise that it exists.
Example:
<select>
<optgroup label="Swedish Cars">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
</optgroup>
<optgroup label="German Cars">
<opt...
How to generate Javadoc HTML files in Eclipse?
...wing shortcut:
Windows: alt + shift + J
Mac: ⌘ + Alt + J
Depending on selected context, a Javadoc will be printed. To create Javadoc written by OP, select corresponding method and hit the shotcut keys.
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How to increase the max upload file size in ASP.NET?
... </security>
</system.webServer>
Or in IIS (7):
Select the website you want enable to accept large file uploads.
In the main window double click 'Request filtering'
Select "Edit Feature Settings"
Modify the "Maximum allowed content length (bytes)"
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Fastest way to extract frames using ffmpeg?
...actly which frames to extract, eg 1, 200, 400, 600, 800, 1000, try using:
select='eq(n\,1)+eq(n\,200)+eq(n\,400)+eq(n\,600)+eq(n\,800)+eq(n\,1000)' \
-vsync vfr -q:v 2
I'm using this with a pipe to Imagemagick's montage to get 10 frames preview from any videos. Obviously the frame numbers ...