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Difference between FOR and AFTER triggers?
...d before this trigger fires.
AFTER is the default when FOR is the only keyword specified.
AFTER triggers cannot be defined on views.
INSTEAD OF
Specifies that the DML trigger is executed instead of the triggering SQL statement, therefore, overriding the actions of the triggering statements. INS...
How can I generate a unique ID in Python? [duplicate]
...ter that can generate
more than 1 million ids per second.
one word about predictability : This algorithm is absolutely NOT designed to generate unpredictable unique id.
you can add a sha-1 or sha-256 digest step at the end of this algorithm but you will loose uniqueness and enter ...
PHP code to remove everything but numbers
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@Qtax: good point, yeah I know that's where we get the word "grep" from ("g/re/p")
– Chris Eberle
Jul 7 '11 at 0:39
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How to initialize private static members in C++?
...tself or C++03 or when ? Please share authentic links please. C++ standard wording is not in sync with the compilers. They mention the member shall still be defined if they are used. So, I don't need the C++ Standard quoting though
– smRaj
Sep 20 '14 at 15:42
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What's the best way to set a single pixel in an HTML5 canvas?
...o...if speed is critical and you know your target audience, don't take the word of an outdated answer (even mine). Instead: test!
– Phrogz
Jan 4 '13 at 22:11
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Validate a username and password against Active Directory?
How can I validate a username and password against Active Directory? I simply want to check if a username and password are correct.
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Which is faster: multiple single INSERTs or one multiple-row INSERT?
...the time the operation took from ~1.5 seconds to ~0.2 seconds. Or in other words, it made it 86% faster compared to single-row inserts. Damn.
– fgblomqvist
May 24 '16 at 0:25
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PHP function to generate v4 UUID
...that mt_rand() does not generate cryptographically secure values. In other words, values generated by this function may be predictable. If you need to ensure that the UUIDs are not predictable, you should rather use Jack's solution below, which makes use of the openssl_random_pseudo_bytes() function...
Boolean.hashCode()
...ame bucket as 2000 % 10
1000 % 20 same bucket as 2000 % 20
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in other words, it would lead to many collisions.
This is because the factorization of 1000 (23, 53) and the factorization of 2000 (24, 53) have so many common factors. Thus prime numbers are chosen, since they are unlikely to have a...
what is the difference between XSD and WSDL
... because it is very specific for Web Services. The above WSDL (or in other words XSD) is created for a class called Book.java and it has created a SOAP service. How the SOAP web service created it is a different topic. One has to write a Java class and before executing it create as a web service the...