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MySQL - UPDATE query based on SELECT Query
...ifferent table.
I identified the following to get a list of activity_id vs product_id:-
SELECT a.activity_id, w.product_id
FROM activities a
JOIN units USING(unit_id)
JOIN product_types USING(product_type_id)
JOIN web_products w
ON sku=CONCAT('L',SUBSTR(product_type_code,3), 'U'...
What is the difference between public, private, and protected?
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@Growler, a more helpful answer would be that it is good to hide as much of the inner workings of an object as possible. That way it is les...
How to override the copy/deepcopy operations for a Python object?
...st2() copy.copy(t2)
– Rob Young
Jun 27 '11 at 18:01
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Classes residing in App_Code is not accessible
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This appears to be a bug in VS2012. Happens to me too.
– James Nail
Jul 16 '13 at 23:02
2
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How to print last two columns using awk
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I just put gawk on Solaris 10 M4000:
So, gawk is the cuplrit on the $NF-1 vs. $(NF-1) issue. Next question what does POSIX say?
per:
http://www.opengroup.org/onlinepubs/009695399/utilities/awk.html
There is no direction one way or the other. Not good. gawk implies subtraction, other awks imp...
std::vector versus std::array in C++
...tteo Italia
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What is the difference between active and passive FTP?
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YuantaoYuantao
2,52711 gold badge1414 silver badges1616 bronze badges
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MySQL LIKE IN()?
...: 8.5s; 2 terms: REGEXP: 22.1s, LIKE: 9.69; '^(hemoglobin|hematr?ocrit).*' vs 3 term like: REGEXP: 36.3, LIKE: 9.59.
– Jesse Clark
Mar 11 '16 at 18:19
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How to get image size (height & width) using JavaScript?
...M On Chrome 35, it’s 16 times faster: jsperf.com/document-getelementbyid-vs-jquery/5
– bfontaine
Aug 12 '14 at 13:52
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show 2 more comment...
pythonic way to do something N times without an index variable?
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@Hamish: My test with 2.6 says 32% faster (23.2 us vs 17.6 us for N=1000). But that is a really time time anyways. I would default to the OP's code because it is more immediately readable (to me).
– Mike Boers
Jun 4 '10 at 1:31
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