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Do you get charged for a 'stopped' instance on EC2? [closed]
... from your account. You’ll be charged for any remaining EBS volumes, but by default the associated EBS volume will be deleted. This can be configured when you create the instance using the command-line EC2 API Tools.
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Bogus foreign key constraint fail
...with the mysql one.
You can see which table it was (one of them, anyway) by doing a "SHOW ENGINE INNODB STATUS" after the drop fails.
If it turns out to be the latter case, I'd dump and restore the whole server if you can.
MySQL 5.1 and above will give you the name of the table with the FK in th...
Nokogiri installation fails -libxml2 is missing
I always worked my way around Nokogiri installation issues by following the documentation in the " Installing Nokogiri " tutorial.
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Stop the 'Ding' when pressing Enter
...' key differently for other text boxes on the form.<br/><br/> By the way: For this project I am using VB. so instead of casting e.KeyChar, I convert it: if e.KeyChar = ChrW(Keys.Enter Then ....
– Mark Ainsworth
Jul 19 '15 at 15:01
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Add an element to an array in Swift
...Swift Programming Language:
You can add a new item to the end of an array by calling the array’s append method
Alternatively, add a new item to the end of an array with the addition assignment operator (+=)
Excerpt From: Apple Inc. “The Swift Programming Language.” iBooks. https://itun.es/us...
Check variable equality against a list of values
...u can use the includes method. It's the cleanest way I've seen. (Supported by all major browsers, except IE (Polyfill is in the link)
if([1,3,12].includes(foo)) {
// ...
}
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Assertion failure in dequeueReusableCellWithIdentifier:forIndexPath:
... The last line of this answer is golden: I've been bitten more than once by using dequeueReusableCellWithIdentifier:forIndexPath: when I should've been using dequeueReusableCellWithIdentifier:.
– ele
Feb 28 '13 at 16:55
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Remove CSS from a Div using JQuery
...und-* property set otherwise (thru classes, for instance) they get cleared by this. I had to deal with this specific issue in our product.
– Dave Van den Eynde
Jul 14 '11 at 20:04
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Set NOW() as Default Value for datetime datatype?
...W
SET NEW.datetimefield = NOW()
it should work for updates too
Answers by Johan & Leonardo involve converting to a timestamp field. Although this is probably ok for the use case presented in the question (storing RegisterDate and LastVisitDate), it is not a universal solution. See datetime v...
Best way to give a variable a default value (simulate Perl ||, ||= )
...he first line would return an empty string, but we could return "john doe" by using $_GET['name'] ? $_GET['name'] : 'john doe'.
– VPhantom
May 20 at 18:33
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