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How to get a substring of text?
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yes, it is. but you also can copy source code form links that I posted
– Aray Karjauv
Apr 20 '18 at 15:44
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Rolling back a remote Git repository
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Or, if there's a particular commit SHA1 (say 1e4f99e in abbreviated form) you'd like to move back to:
git push origin 1e4f99e:master
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What is a “slug” in Django?
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The term 'slug' comes from the world of newspaper production.
It's an informal name given to a story during the production process. As the story winds its path from the beat reporter (assuming these even exist any more?) through to editor through to the "printing presses", this is the name it is ...
Should I use char** argv or char* argv[]?
...ead of drawing an array parameter invalid up-front, a C compiler will transform the type of the respective parameter to be a pointer. Remember this, it's very important. The parameter won't be an array, but instead it will be a pointer to the respective element type.
Now, if you try to pass an arr...
MySQL: how to get the difference between two timestamps in seconds
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+1 for the performance explanation. I wasn't using UNIX_TIMESTAMP() because I thought it would take more time.
– elcool
Apr 22 '11 at 18:14
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JPQL IN clause: Java-Arrays (or Lists, Sets…)?
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How do I convert an integer to string as part of a PostgreSQL query?
...int8
The :: cast operator is historical but convenient. Postgres also conforms to the SQL standard syntax
myint = cast ( mytext as int8)
If you have literal text you want to compare with an int, cast the int to text:
SELECT * FROM table
WHERE myint::varchar(255) = mytext
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How to duplicate sys.stdout to a log file?
...re python implementation of tee (py2/3 compatible) that can run on any platform and also be used in different logging configurations. stackoverflow.com/questions/616645/…
– sorin
Aug 6 '10 at 11:43
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Are there any smart cases of runtime code modification?
...n be useful for:
Some virtual machines use JIT compilation to improve performance.
Generating specialized functions on the fly has long been common in computer graphics. See e.g. Rob Pike and Bart Locanthi and John Reiser Hardware Software Tradeoffs for Bitmap Graphics on the Blit (1984) or this p...
Hidden features of Perl?
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Run perldoc perlop and search for "flip-flop" for more information and examples.
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answered Oct 2 '08 at 12:41
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