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Optimistic vs. Pessimistic locking
...stay unmodified for the duration, it's as accurate as pessimistic locking (select for update style) on those same records. The main difference is that optimistic locking incurs overhead only if there's a conflict, whereas pessimistic locking has reduced overhead on conflict. So optimistic is best ...
How to view the list of compile errors in IntelliJ?
... Apparently this "problems" toolbar is only available if you select the "auto compile" mode. see here: jetbrains.com/help/idea/2016.2/problems-tool-window.html
– atom88
Nov 18 '16 at 21:17
...
Is it possible to dynamically compile and execute C# code fragments?
...,100)
where i % 2 == 0
select i;
}
}");
results.Errors.Cast<CompilerError>().ToList().ForEach(error => Console.WriteLine(error.ErrorText));
}
}
The class of primary importance here is the CSharpCodeP...
PHP: merge two arrays while keeping keys instead of reindexing?
...xing by + operator. This will be very help full in laravel and codeigniter select dropdown.
$empty_option = array(
''=>'Select Option'
);
$option_list = array(
1=>'Red',
2=>'White',
3=>'Green',
);
$arr_option = $empty_...
How do I get an apk file from an Android device?
...list which apps you got so far.
adb shell pm list packages
Then you may select an app, for instance twitter
adb backup -apk com.twitter.android
An important thing here is to not set up a password for encrypt your backup
This is going to create a file named as backup.ap, but you still can't op...
jQuery access input hidden value
...
There's a jQuery selector for that:
// Get all form fields that are hidden
var hidden_fields = $( this ).find( 'input:hidden' );
// Filter those which have a specific type
hidden_fields.attr( 'text' );
Will give you all hidden input field...
A non-blocking read on a subprocess.PIPE in Python
...
fcntl, select, asyncproc won't help in this case.
A reliable way to read a stream without blocking regardless of operating system is to use Queue.get_nowait():
import sys
from subprocess import PIPE, Popen
from threading import T...
Maven: Command to update repository after adding dependency to POM
...:
Right click on the project ->Run As -- >Run configurations.
Then select mavenBuild.
Then click new button to create a configuration of the selected
type .Click on Browse workspace then select your project and in
goals specify eclipse:eclipse
You can refer to how to run the command mvn e...
C# DropDownList with a Dictionary as DataSource
...fy "Value" and "Key" for DataTextField and DataValueField respectively, to select the Value/Key properties.
Thanks to Joe's comment, I reread the question to get these the right way round. Normally I'd expect the "key" in the dictionary to be the text that's displayed, and the "value" to be the val...
How do I access my SSH public key?
...="xclip -sel clip" and then pbcopy < ~/.ssh/id_rsa.pub OR simply xclip -selection clipboard < ~/.ssh/id_rsa.pub
– gebbissimo
Mar 8 '19 at 12:29
...