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How unique is UUID?
...rsion 4 uuid should be very safe to use. In fact I'm using it to identify blocks on a network block file system and so far have not had a clash.
In my case, the PRNG I'm using is a mersenne twister and I'm being careful with the way it's seeded which is from multiple sources including /dev/urand...
Reset C int array to zero : the fastest way?
...many values of a fit into a register. Afterwards, he loops over all 32byte blocks, that should be fully overwritten using pointer arithmetics ((float *)((a)+x)). The two intrinsics (starting with _mm256) just create a zero-initialized 32byte register and store it to the current pointer. This are the...
What is eager loading?
What is eager loading? I code in PHP/JS but a more generalised answer will be just fine.
4 Answers
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How do I bind to list of checkbox values with AngularJS?
.... Meaning posting it to the action handler (some server side script). With php, a form element with a name like that (using the square brackets) creates an array in the request data. This way you could easily handle the selected fruits.
– Yoshi
Dec 25 '15 at 14...
What is the difference between an ORM and an ODM?
...u can have hybrid ORM/ODM frameworks, like mORMot for Delphi, Doctrine for PHP or Hibernate OGM for Java. And some SQL databases have strong support to documents, e.g. the great PostgresSQL which features JSON or JSONB data types so you can mix RDBMS and Document-oriented storage within the same tab...
XML Validation with XSD in Visual Studio IDE
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Another point of failure here is Windows 7 "blocking" schema files... right-click on the xsd file on disk, Properties > General and if it's blocked, you'll have an "Unblock" button. This was causing my XML validation to fail in VS2012.
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Handling warning for possible multiple enumeration of IEnumerable
...You could re-wrap the iterator, for example. You could make it an iterator block too, which could be nice; then there is no list - and you would yield return the items as you get them, rather than add to a list to be returned.
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Why does make think the target is up to date?
...going to be part of issue 8 of the POSIX standard austingroupbugs.net/view.php?id=523
– osvein
Jul 29 '17 at 9:31
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MySQL convert date string to Unix timestamp
...with MySQL:
http://www.epochconverter.com/programming/mysql-from-unixtime.php
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SQL selecting rows by most recent date
...ows by most recent date".
Modified from http://wiki.lessthandot.com/index.php/Returning_The_Maximum_Value_For_A_Row
SELECT t.chargeId, t.chargeType, t.serviceMonth FROM(
SELECT chargeId,MAX(serviceMonth) AS serviceMonth
FROM invoice
GROUP BY chargeId) x
JOIN invoice t ON x.charge...