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MySQL Error 1215: Cannot add foreign key constraint
... @www.jensolsson.se You are correct, if the PK includes one or more string columns then they must use the same character set and collation. In this specific case the PK was an INT so the character set of the table and/or columns was not relevant.
– Ike Walker
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Zooming MKMapView to fit annotation pins?
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Very nice solution!!! Here's an extra little touch to add some padding: double inset = -zoomRect.size.width * 0.1; [self.mapView setVisibleMapRect:MKMapRectInset(zoomRect, inset, inset) animated:YES];
– Craig B
Aug 5 '...
Can CSS force a line break after each word in an element?
...es a line-break wherever a line-break appears in the code, but ignores the extra whitespace (tabs and spaces etc.).
First, write your words on separate lines in your code:
<div>Short
Word</div>
Then apply the style to the element containing the words.
div { white-space: pre-line; }...
How to compare dates in datetime fields in Postgresql?
...er the first form because you want to avoid date manipulation on the input string, correct? you don't need to be afraid:
SELECT *
FROM table
WHERE update_date >= '2013-05-03'::date
AND update_date < ('2013-05-03'::date + '1 day'::interval);
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How can I change the color of my prompt in zsh (different from normal text)?
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It is working, but the $ before the string make zshrc to glitch. The text is put on the left when I use tabulation. I prefer @Joe the Person answer
– Moebius
Jul 17 '15 at 11:10
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Converting from Integer, to BigInteger
....g.,
BigInteger bi = BigInteger.valueOf(myInteger.intValue());
Making a String first is unnecessary and undesired.
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How to remove the hash from window.location (URL) with JavaScript without page refresh?
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Use this line to make sure you don't lose the query string: history.pushState("", document.title, window.location.pathname + window.location.search);
– Phil Kulak
Mar 13 '12 at 15:56
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Unicode, UTF, ASCII, ANSI format differences
...ar encoding.
UTF-16: 2 bytes per "code unit". This is the native format of strings in .NET, and generally in Windows and Java. Values outside the Basic Multilingual Plane (BMP) are encoded as surrogate pairs. These used to be relatively rarely used, but now many consumer applications will need to be...
How do you represent a JSON array of strings?
...nts are always ignored by any JSON parser.
And value is an object, array, string, number, bool or null:
So yeah, ["a", "b"] is a perfectly valid JSON, like you could try on the link Manish pointed.
Here are a few extra valid JSON examples, one per block:
{}
[0]
{"__comment": "json doesn't accept...
Have bash script answer interactive prompts [duplicate]
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Unfortunately I can't use expect as their are stringent space requirements on the system running this so I can't add extra packages, but piping yes in did the trick, luckily all the prompts only required a 'y' anyway. Thanks.
– TJ L
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