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How to return result of a SELECT inside a function in PostgreSQL?
...guity
END
$func$ LANGUAGE plpgsql;
Call:
SELECT * FROM word_frequency(123);
Explanation:
It is much more practical to explicitly define the return type than simply declaring it as record. This way you don't have to provide a column definition list with every function call. RETURNS TABLE is ...
What does Ruby have that Python doesn't, and vice versa?
..., 2, 3, 4].each{ |e| puts e + 5 }
> [6, 7, 8, 9]
Python has anonymous functions/closures/lambdas, but it doesn't quite have blocks since it's missing some of the useful syntactic sugar. However, there's at least one way to get it in an ad-hoc fashion. See, for example, here.
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How do I initialize the base (super) class?
...):
pass
class Y(X):
def __init__(self):
super(Y, self).__init__(123)
def doit(self, foo):
return super(Y, self).doit(foo)
Because python knows about old- and new-style classes, there are different ways to invoke a base method, which is why you've found multiple ways of doing so.
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Choose Git merge strategy for specific files (“ours”, “mine”, “theirs”)
...
123
Even though this question is answered, providing an example as to what "theirs" and "ours" mea...
Linux: compute a single hash for a given folder & contents?
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123
One possible way would be:
sha1sum path/to/folder/* | sha1sum
If there is a whole directory ...
Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?
... so counter-intuitive, though it does have one very important application: functions.
trait Function1[-P, +R] {
def apply(p: P): R
}
Notice the "-" variance annotation on the P type parameter. This declaration as a whole means that Function1 is contravariant in P and covariant in R. Thus, we ...
Mediator Vs Observer Object-Oriented Design Patterns
...ication while observer works only one way.
– kiwicomb123
Mar 3 '19 at 6:51
Exactly, glad it helped
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Reuse Cucumber steps
...ccessfully
Examples:
|username|password|may or may not|
|paul |123$ |may |
|dave |1111 |may not |
In my step definition, (This is Java)
@Given(I login with \"([^\"]*)\" and \"([^\"]*)\"$)
public void I_login_with_and(String username, String password){
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Algorithm to return all combinations of k elements from n
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Usage:
var result = Combinations(new[] { 1, 2, 3, 4, 5 }, 3);
Result:
123
124
125
134
135
145
234
235
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345
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What is the @Html.DisplayFor syntax for?
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