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How do I use variables in Oracle SQL Developer?
...is page in section 2.4 talks about the difference between the single ampersand (&) and double ampersand (&&)
– Baodad
May 13 '14 at 23:03
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What's the regular expression that matches a square bracket?
...May 29 '09 at 20:51
Peter StuifzandPeter Stuifzand
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Java Map equivalent in C#
...)
{
otherExample["key"] = value + 1;
}
With this method you can fast and exception-less get values (if present).
Resources:
Dictionary-Keys
Try Get Value
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Cannot ping AWS EC2 instance
...cho Request", I got confused by this for a moment.
– Andy
Jul 10 '18 at 15:23
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NameError: name 'self' is not defined
...ot refer each other.
It's a common pattern to default an argument to None and add a test for that in code:
def p(self, b=None):
if b is None:
b = self.a
print b
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Good way to use table alias in Update statement?
I'm using SQL Server, and trying to update rows from within the same table. I want to use a table alias for readability.
2 ...
php static function
...() is actually an instance method which you are calling as a static method and you get away with it because sayHi() never refers to $this.
Static functions are associated with the class, not an instance of the class. As such, $this is not available from a static context ($this isn't pointing to any...
Selecting element by data attribute
Is there an easy and straight-forward method to select elements based on their data attribute? For example, select all anchors that has data attribute named customerID which has value of 22 .
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[] and {} vs list() and dict(), which is better?
I understand that they are both essentially the same thing, but in terms of style, which is the better (more Pythonic) one to use to create an empty list or dict?
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I lose my data when the container exits
Despite Docker's Interactive tutorial and faq I lose my data when the container exits.
11 Answers
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