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IF… OR IF… in a windows batch file
... logic that arasmussen uses on the grounds that it might perform a wee bit faster if the 1st condition is true, but I never bother.
Addendum - This is a duplicate question with nearly identical answers to Using an OR in an IF statement WinXP Batch Script
Final addendum - I almost forgot my favorite ...
One SVN repository or many?
... were I in your position, I'd combine projects into a single repository as fast as I could type the commands, because the cost would be a major consideration in my (very, very small) company.
JFTR:
revision numbers in Subversion really have no meaning outside the repository. If you need meaningf...
Get first key in a (possibly) associative array?
... the array, and subsequently key. The latter approach is probably slightly faster (Thoug I didn't test it), but it has the side effect of resetting the internal pointer.
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How to revert (Roll Back) a checkin in TFS 2010
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see this video for a very fast demo of tf rollback: youtube.com/watch?v=ar6E88Tpf9I
– KevinDeus
Nov 12 '11 at 5:48
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Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server
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That's right Yannick, I read to fast and will remove my comment. However, AFAIK, permissions are working fine in MySQL so: 1. maybe the OP modified the grant tables manually and then need to flush privileges. 2. maybe he didn't use the proper grant syntax f...
keep rsync from removing unfinished source files
I have two machines, speed and mass. speed has a fast Internet connection and is running a crawler which downloads a lot of files to disk. mass has a lot of disk space. I want to move the files from speed to mass after they're done downloading. Ideally, I'd just run:
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LEN function not including trailing spaces in SQL Server
...thing will happen with VARCHAR(8000).
What I've found works, is nearly as fast as plain old LEN, is faster than LEN(@s + 'x') - 1 for large strings, and does not assume the underlying character width is the following:
DATALENGTH(@s) / DATALENGTH(LEFT(LEFT(@s, 1) + 'x', 1))
This gets the dataleng...
Index on multiple columns in Ruby on Rails
...selective field first, i.e. the field that narrows down the number of rows fastest.
The index will only be used insofar as you use its columns in sequence starting at the beginning. i.e. if you index on [:user_id, :article_id], you can perform a fast query on user_id or user_id AND article_id, but N...
How do I sort unicode strings alphabetically in Python?
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+1 for pyuca. It's fairly fast (3 seconds to sort 28000 words), is pure python, and requires no dependency.
– michaelmeyer
May 16 '13 at 12:00
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from list of integers, get number closest to a given value
...ulation for each number. Using bisect.bisect_left instead is almost always faster.
The "almost" comes from the fact that bisect_left requires the list to be sorted to work. Hopefully, your use case is such that you can sort the list once and then leave it alone. Even if not, as long as you don't ne...