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Difference between CLOB and BLOB from DB2 and Oracle Perspective?
...contain mixed-width characters. Binary objects are possibly non-printable. All character is binary, the converse is not necessarily true once you leave the database, nor again when leaving the platform.
– mckenzm
Apr 21 '16 at 5:18
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R object identification
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I usually start out with some combination of:
typeof(obj)
class(obj)
sapply(obj, class)
sapply(obj, attributes)
attributes(obj)
names(obj)
as appropriate based on what's revealed. For example, try with:
obj <- data.frame(a...
How to get diff working like git-diff?
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Install colordiff from your apt/yum/pacman repository and use it.
– iBug
Jul 29 '18 at 8:14
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How to avoid isset() and empty()
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For those interested, I have expanded this topic into a small article, which provides the below information in a somewhat better structured form: The Definitive Guide To PHP's isset And empty
IMHO you should think about not just making the app "E_NOTICE compatible", but restructu...
How can I get the font size and font name of a UILabel?
...ets in Interface Builder. If not using ARC, make sure you release it in -dealloc
- (void)dealloc
{
[self.label release];
[super dealloc];
}
Then to get the font name and size all you need is
NSString *fontName = self.label.font.fontName;
CGFloat fontSize = self.label.font.pointSize;
...
How is std::function implemented?
According to the sources I have found, a lambda expression is essentially implemented by the compiler creating a class with overloaded function call operator and the referenced variables as members. This suggests that the size of lambda expressions varies, and given enough references variables tha...
List of MSBuild built-in variables
...termediate Directory drop down choose Edit... and you should see a list of all defined properties.
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Regex to match any character including new lines
Is there a regex to match "all characters including newlines"?
4 Answers
4
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Add EBS to Ubuntu EC2 Instance
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Thanks a lot for this! I was totally confused by the /mnt directory and wrongly assumed that my extra EBS volume (/dev/xvdf) that I told AWS to attach at instance creation was already mounted. Also, the mapping between what AWS shows (/dev/sdf) and (/dev/xv...
How to set limits for axes in ggplot2 R plots?
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Basically you have two options
scale_x_continuous(limits = c(-5000, 5000))
or
coord_cartesian(xlim = c(-5000, 5000))
Where the first removes all data points outside the given range and the second only adjusts the visible ar...