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WITH (NOLOCK) vs SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
...If you use the set transaction isolation level statement, it will apply to all the tables in the connection, so if you only want a nolock on one or two tables use that; otherwise use the other.
Both will give you dirty reads. If you are okay with that, then use them. If you can't have dirty reads,...
How to find all tables that have foreign keys that reference particular table.column and have values
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This solution will not only display all relations but also the constraint name, which is required in some cases (e.g. drop constraint):
SELECT
CONCAT(table_name, '.', column_name) AS 'foreign key',
CONCAT(referenced_table_name, '.', referenced_column_n...
Determine if running on a rooted device
...se;
} catch (Throwable t) {
return false;
} finally {
if (process != null) process.destroy();
}
}
}
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Different results with Java's digest versus external utilities
...ly depending on the architecture of your process. This article explains it all - in particular:
But what about 32-bit applications that have the system path hard coded and is running in a 64-bit Windows? How can they find the new SysWOW64 folder without changes in the program code, you might thi...
Android: HTTP communication should use “Accept-Encoding: gzip”
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That is a great and very helpful answer with all the details I needed. Thanks a lot. One comment: instead of addHeader I used setHeader. From what I understand this overwrites the existing "Accept-Encoding" if there is one. Not sure which approach is the right/better on...
How do you make lettered lists using markdown?
Markdown allows ordered lists using numbers. How can I instead get an ordered list using letters ? i.e.
5 Answers
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Where should signal handlers live in a django project?
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I actually like to make them classmethods of the model itself. That keeps everything within one class, and means you don't have to worry about importing anything.
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Create new tmux session from inside a tmux session
... Thanks for the very complete answer, this answered a few of my questions all at once!
– mdekkers
Jun 1 '18 at 4:33
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Change Activity's theme programmatically
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As docs say you have to call setTheme before any view output. It seems that super.onCreate() takes part in view processing.
So, to switch between themes dynamically you simply need to call setTheme before super.onCreate like this:
public void onCre...
Difference between GIT and CVS
...in the middle, the repository can be left in an inconsistent state. In Git all operations are atomic: either they succeed as whole, or they fail without any changes.
Changesets. Changes in CVS are per file, while changes (commits) in Git they always refer to the whole project. This is very important...