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LISTAGG in Oracle to return distinct values
...
19c and later:
select listagg(distinct the_column, ',') within group (order by the_column)
from the_table
18c and earlier:
select listagg(the_column, ',') within group (order by the_column)
from (
select distinct the_colum...
Is there a C# type for representing an integer Range?
...e use Tuples or Points, but in the end you want your Range to be extensive and provide some handy methods that relate to a Range. It's also best if generic (what if you need a range of Doubles, or a range of some custom class?) For example:
/// <summary>The Range class.</summary>
/// &l...
What is the difference between LL and LR parsing?
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At a high level, the difference between LL parsing and LR parsing is that LL parsers begin at the start symbol and try to apply productions to arrive at the target string, whereas LR parsers begin at the target string and try to arrive back at the start symbol.
An LL parse i...
Can I set an opacity only to the background image of a div?
...nnot be done since opacity affects the whole element including its content and there's no way to alter this behavior. You can work around this with the two following methods.
Secondary div
Add another div element to the container to hold the background. This is the most cross-browser friendly meth...
What is the Simplest Way to Reverse an ArrayList?
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Collections.reverse(List); I used it in an Android project, works fine.
– Damir Varevac
Jul 7 '18 at 15:23
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How can I return NULL from a generic method in C#?
...ce))
Restrict T to be a reference type with the where T : class constraint and then return null as normal
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Passing enum or object through an intent (the best solution)
...stion, but everybody fails to mention that Enums are actually Serializable and therefore can perfectly be added to an Intent as an extra. Like this:
public enum AwesomeEnum {
SOMETHING, OTHER;
}
intent.putExtra("AwesomeEnum", AwesomeEnum.SOMETHING);
AwesomeEnum result = (AwesomeEnum) intent.get...
Text overflow ellipsis on two lines
...Chris Coyier's excellent CSS-Tricks.com posted a link to this a while back and it's a pure CSS solution that accomplishes exactly what you seek.
(Click to View on CodePen)
HTML:
<div class="ellipsis">
<div>
<p>
Call me Ishmael. Some years ago – never mi...
What do the following phrases mean in C++: zero-, default- and value-initialization?
...thing to realize is that 'value-initialization' is new with the C++ 2003 standard - it doesn't exist in the original 1998 standard (I think it might be the only difference that's more than a clarification). See Kirill V. Lyadvinsky's answer for the definitions straight from the standard.
See this ...
Transferring files over SSH [closed]
I'm SSHing into a remote server on the command line, and trying to copy a directory onto my local machine with the scp command. However, the remote server returns this "usage" message:
...