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WITH CHECK ADD CONSTRAINT followed by CHECK CONSTRAINT vs. ADD CONSTRAINT
...e trusted to accurately represent the state of the data in the table right now. It can, however, but can be trusted to check data added and modified in the future.
Additionally, untrusted constraints are disregarded by the query optimiser.
The code to enable check constraints and foreign key const...
Error: The 'brew link' step did not complete successfully
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The homebrew package for node.js now includes npm again, so this happened to me when I missed the homebrew package's message about removing the standalone version first.
Assuming, like me, you've already broken node/npm by attempting the upgrade before kno...
What is the function of the push / pop instructions used on registers in x86 assembly?
... 0xdeadbeef ; push a value to the stack
pop eax ; eax is now 0xdeadbeef
; swap contents of registers
push eax
mov eax, ebx
pop ebx
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Switch statement fallthrough in C#?
...amming with C# since the early days of 1.0, and I've never seen this until now. Just goes to show, you learn new things every day.
– Erik Forbes
Feb 5 '09 at 3:30
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Inheriting class methods from modules / mixins in Ruby
It is known that in Ruby, class methods get inherited:
4 Answers
4
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Number.sign() in javascript
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You are the best for now. But I hope there will be more answers in future.
– disfated
Oct 2 '11 at 11:08
add a comment
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Pretty git branch graphs
...trator for a publication– and there was no better solution. But there now exists much more applicable answers to this Q, such as fracz's, Jubobs', or Harry Lee's! Please go upvote those!!
Update 2: I've posted an improved version of this answer to the Visualizing branch topology in git ques...
The Difference Between Deprecated, Depreciated and Obsolete [closed]
There is a lot of confusion about this and I'd like to know, what exactly is the difference between depreciated , deprecated and obsolete , in a programming context, but also in general.
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jQuery AJAX file upload PHP
... display response from the PHP script, if any
}
});
});
And now for the server-side script, using PHP in this case.
upload.php: a PHP script that runs on the server and directs the file to the uploads directory:
<?php
if ( 0 < $_FILES['file']['error'] ) {
echo 'Er...
Safe (bounds-checked) array lookup in Swift, through optional bindings?
...hen accessing missing keys, which makes sense because it's much harder to know if a key is present in a dictionary since those keys can be anything, where in an array the key must in a range of: 0 to count. And it's incredibly common to iterate over this range, where you can be absolutely sure have ...