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Does the join order matter in SQL?

...same as b LEFT JOIN a Outer joins are not associative either, so in your em>xm>amples which involve both (commutativity and associativity) properties: a LEFT JOIN b ON b.ab_id = a.ab_id LEFT JOIN c ON c.ac_id = a.ac_id is equivalent to: a LEFT JOIN c ON c.ac_id = a.ac_id LEFT JOIN...
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adding noise to a signal in python

... In some contem>xm>ts, it might make more sense to multiply your signal by a noise array (centered around 1), rather than adding a noise array, but of course that depends on the nature of the noise that you're trying to simulate. ...
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What is the format specifier for unsigned short int?

... "%h" modifier: scanf("%hu", &length); ^ ISO/IEC 9899:201m>xm> - 7.21.6.1-7 Specifies that a following d , i , o , u , m>xm> , m>Xm> , or n conversion specifier applies to an argument with type pointer to short or unsigned short. ...
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How to replace multiple substrings of a string?

... Here is a short em>xm>ample that should do the trick with regular em>xm>pressions: import re rep = {"condition1": "", "condition2": "tem>xm>t"} # define desired replacements here # use these three lines to do the replacement rep = dict((re.escape(k), ...
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How do I 'overwrite', rather than 'merge', a branch on another branch in Git?

...w away branch 'A'" -p A -p B B^{tree}) This basically acts like the (non-em>xm>istent) merge -s theirs strategy. You can find the resulting history in the plumbing branch of the demo repository Not very readable and not as easy to remember compared to the -s ours switch, but it does the job. The result...
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What is a Y-combinator? [closed]

... If you're ready for a long read, Mike Vanier has a great em>xm>planation. Long story short, it allows you to implement recursion in a language that doesn't necessarily support it natively. share | ...
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Difference between len() and .__len__()?

...ut a.len() would not be as clear. When Python started __len__ didn't even em>xm>ist and len was a special thing that worked with a few types of objects. Whether or not the situation this leaves us makes total sense, it's here to stay. ...
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How to convert DOS/Windows newline (CRLF) to Unim>xm> newline (LF) in a Bash script?

...programmatically (i.e., not using vi ) convert DOS/Windows newlines to Unim>xm>? 23 Answers ...
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How do I keep Python print from adding newlines or spaces? [duplicate]

... You need to call sys.stdout.flush() because otherwise it will hold the tem>xm>t in a buffer and you won't see it. share | improve this answer | follow | ...
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How do you tell a specific Delayed::Job to run in console?

For some reason, Delayed::Job's has decided to queue up but not em>xm>cecute anything even though I've restarted it several times, even kill -9'd it and restarted it. It won't run any jobs. ...