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Rename MySQL database [duplicate]
...is easy, it is time and space consuming. What if the schema is more than a 100GB? There are methods where you can pipe the above commands together to save on space, however it will not save time.
To remedy such situations, there is another quick method to rename
schemas, however, some care mus...
How do I remove a submodule?
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In current git (v1.9+), plain old git rm submodule does exactly what you want as other people have already said.
– Pete Peterson
Jun 12 '14 at 17:36
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Linux bash: Multiple variable assignment
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@Michael Using read -d "\n" v1 v2 <<<$(cmd) works perfectly. Thank you!
– Rucent88
Mar 9 '14 at 21:20
1
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Improve INSERT-per-second performance of SQLite
...d-up (3.8.0.2 64-bit on Windows 7). Our tables are heavily non-normalized (1000-1500 columns, roughly 100,000 or more rows).
Too many or too little threads won't do it, you need to benchmark and profile yourself.
Also for us, SHAREDCACHE made the performance slower, so I manually put PRIVATECACHE ...
Save ArrayList to SharedPreferences
...references with unused old values. For example a list might have a size of 100 on a run, and then a size of 50. The 50 old entries will remain on the preferences. One way is setting a MAX value and clearing anything up to that.
– Iraklis
Feb 17 '13 at 12:17
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Why do we check up to the square root of a prime number to determine if it is prime?
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Sven MarnachSven Marnach
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Wait until a process ends
...Style = ProcessWindowStyle.Minimized;
process.Start();
process.WaitForExit(1000 * 60 * 5); // Wait up to five minutes.
There are a few extra features in there which you might find useful...
share
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Coarse-grained vs fine-grained
...an example, you will understand easily.
Fine-grained: For example, I have 100 services like findbyId, findbyCategry, findbyName...... so on. Instead of that many services why we can not provide find(id, category, name....so on). So this way we can reduce the services. This is just an example, but t...
WPF and initial focus
... var window = e.Source as Window;
System.Threading.Thread.Sleep(100);
window.Dispatcher.Invoke(
new Action(() =>
{
window.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
}));
}
The threading issue must be use as WPF in...
find first sequence item that matches a criterion [duplicate]
...than a complete list comprehension. Compare these two:
[i for i in xrange(100000) if i == 1000][0]
next(i for i in xrange(100000) if i == 1000)
The first one needs 5.75ms, the second one 58.3µs (100 times faster because the loop 100 times shorter).
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