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Ruby: Can I write multi-line string with no concatenation?
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p <<END_SQL.gsub(/\s+/, " ").strip
SELECT * FROM users
ORDER BY users.id DESC
END_SQL
# >> "SELECT * FROM users ORDER BY users.id DESC"
The latter would mostly be for situations that required more flexibility in the processing. I personally don't like it, it puts the proc...
Can a variable number of arguments be passed to a function?
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# 1
# 2
# 3
# banan = 123
They must be both declared and called in that order, that is the function signature needs to be *args, **kwargs, and called in that order.
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NHibernate ISession Flush: Where and when to use it, and why?
...it()
from ISession.Flush()
The SQL statements are issued in the following order
all entity insertions, in the same order the corresponding objects were saved using ISession.Save()
all entity updates
all collection deletions
all collection element deletions, updates and insertions
all collection in...
What is a “Bitmap heap scan” in a query plan?
... is different from an index scan, where the index is visited row by row in order -- meaning a disk page may get visited multiple times.
Re: the question in your comment... Yep, that's exactly it.
An index scan will go through rows one by one, opening disk pages again and again, as many times as ...
Are 2^n and n*2^n in the same time complexity?
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You will have to go to the formal definition of the big O (O) in order to answer this question.
The definition is that f(x) belongs to O(g(x)) if and only if the limit limsupx → ∞ (f(x)/g(x)) exists i.e. is not infinity. In short this means that there exists a constant M, such that v...
Is there a way to do method overloading in TypeScript?
... keeps your API honest as you'll avoid creating overloads with unintuitive ordering.
The general law of TypeScript overloads is:
If you can delete the overload signatures and all of your tests pass, you don’t need TypeScript overloads
You can usually achieve the same thing with optional, or...
How do I tell Matplotlib to create a second (new) plot, then later plot on the old one?
...ruggling is creating a function which gets data_plot matrix, file name and order as parameter to create boxplots from the given data in the ordered figure (different orders = different figures) and save it under the given file_name.
def plotFigure(data_plot,file_name,order):
fig = plt.figure(or...
Sorting an array of objects in Ruby by object attribute?
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Ascending order :
objects_array.sort! { |a, b| a.attribute <=> b.attribute }
or
objects_array.sort_by{ |obj| obj.attribute }
Descending order :
objects_array.sort! { |a, b| b.attribute <=> a.attribute }
or
obje...
How can I list all foreign keys referencing a given table in SQL Server?
...n I get a list of all the foreign key constraints I will need to remove in order to drop the table?
26 Answers
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UDP vs TCP, how much faster is it? [closed]
...le much more efficiently than TCP's point-to-point acknowledgement.
Out-of-order delivery: in lots of applications, as long as you get all the data, you don't care what order it arrives in; you can reduce app-level latency by accepting an out-of-order block.
Unfriendliness: on a LAN party, you may ...