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How do I filter query objects by date range in Django?
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What's date1's datatype? I've got datetime object now.
– user469652
Jan 12 '11 at 12:25
8
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Artificially create a connection timeout error
I've had a bug in our software that occurs when I receive a connection timeout. These errors are very rare (usually when my connection gets dropped by our internal network). How can I generate this kind of effect artificially so I can test our software?
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Determine if a function exists in bash
... a () { echo 'a' ;}
type a | grep -q 'is a function'
}
echo 'declare'
time for i in $(seq 1 1000); do test_declare; done
echo 'type'
time for i in $(seq 1 100); do test_type; done
this generated :
real 0m0.064s
user 0m0.040s
sys 0m0.020s
type
real 0m2.769s
user 0m1.620s
sys...
Why is SELECT * considered harmful?
...lowing access and increasing load on your machines, as well as taking more time to travel across the network. This is especially true when someone adds new columns to underlying tables that didn't exist and weren't needed when the original consumers coded their data access.
Indexing issues. Consid...
How to reuse existing C# class definitions in TypeScript projects
...ng like this is what i was thinking to do manually.. good. Not sure I have time to write a converter now.. but yes, that would be the idea. Thanks. May be Microsoft is just doing it right now whie we speak.
– pabloelustondo
Oct 19 '12 at 1:57
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How to reverse-i-search back and forth? [duplicate]
I use reverse-i-search often, and that's cool. Sometime though when pressing CTRL + r multiple times, I pass the command I am actually looking for. Because CTRL + r searches backward in history, from newest to oldest, I have to:
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How to remove certain characters from a string in C++?
...s that are in positions where ()- aren't." And since each one is done at a time, shouldn't it remove ALL characters? I've read the documentation on both functions, and this makes no sense to me. cplusplus.com/reference/algorithm/remove cplusplus.com/reference/string/string/erase
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Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'?,./
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MikeSchem, you just took me through a time machine.
– pixelbobby
Apr 24 at 2:26
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The application may be doing too much work on its main thread
...oreographer lets apps to connect themselves to the vsync, and
properly time things to improve performance.
Android view animations internally uses Choreographer for the same
purpose: to properly time the animations and possibly improve
performance.
Since Choreographer i...
Best way to store time (hh:mm) in a database
I want to store times in a database table but only need to store the hours and minutes.
I know I could just use DATETIME and ignore the other components of the date, but what's the best way to do this without storing more info than I actually need?
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