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Query a parameter (postgresql.conf setting) like “max_connections”
Does anyone know if it's even possible (and how, if yes) to query a database server setting in PostgreSQL (9.1)?
1 Answer
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How to PUT a json object with an array using curl
...enter the data isn't good for bulk entry, so I'm trying to formulate a command line equivalent. When I examine the network request of the UI in chrome, I see a PUT request of a json object. When I try to replicate the request
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How to remove specific element from an array using python
...m exists in the initial_list? There could be a case where it doesn't exist and you wont' have to remove it.
– locoboy
Aug 19 '11 at 18:55
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Adding dictionaries together, Python [duplicate]
I have two dictionaries and I'd like to be able to make them one:
6 Answers
6
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How do I extract a sub-hash from a hash?
...:d=>:D}
h1 = Hash[h1.to_a - h2.to_a] # => {:a=>:A, :c=>:C}
And if you want to patch that into the Hash class:
class Hash
def extract_subhash(*extract)
h2 = self.select{|key, value| extract.include?(key) }
self.delete_if {|key, value| extract.include?(key) }
h2
end
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Python import csv to list
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Pandas is pretty good at dealing with data. Here is one example how to use it:
import pandas as pd
# Read the CSV into a pandas data frame (df)
# With a df you can do many things
# most important: visualize data with Sea...
Generics in C#, using type of a variable as parameter [duplicate]
... transaction });
Ick.
Can you make your calling method generic instead, and pass in your type parameter as the type argument, pushing the decision one level higher up the stack?
If you could give us more information about what you're doing, that would help. Sometimes you may need to use reflecti...
Does Flask support regular expressions in its URL routing?
I understand that Flask has the int, float and path converters, but the application we're developing has more complex patterns in its URLs.
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How do you make a WPF slider snap only to discrete integer positions?
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The simple answer is that you take advantage of the IsSnapToTickEnabled and TickFrequency properties. That is, turn snapping to ticks on and set the tick frequency to 1.
Or, in other words ... take advantage of ticks ... but you don't necessarily have to show the ticks that you are snapping to.
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Call static method with reflection
...f the method resides in an ancestor class.
– J. Ouwehand
Jun 8 '19 at 14:51
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