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Which is faster: multiple single INSERTs or one multiple-row INSERT?
... How many rows i can insert at a time using single insert statement. is it allow me to insert 10000 rows at a time?
– Naresh Ramoliya
Apr 30 '16 at 8:02
10
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Making iTerm to translate 'meta-key' in the same way as in other OSes
... to move one word forward or backward on the shell prompt respectively. Usually, the meta key is mapped to Alt key on Windows and Linux. However, in iTerm, I could not find a way to map this meta key to either Option or Command key on my MacBook Pro.
...
What is the difference between const and readonly in C#?
...time of a definition for a const VS readonly values can be computed dynamically but need to be assigned before the constructor exits.. after that it is frozen.
'const's are implicitly static. You use a ClassName.ConstantName notation to access them.
There is a subtle difference. Consider a class d...
Moq mock method with out specifying input parameter
...le parameter? Is it possible to just say "Anything where the types fit for all parameters"?
– Brandon
Mar 2 '16 at 19:13
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How do I select the “last child” with a specific class name in CSS? [duplicate]
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This doesnt at all answer the question, did you even read it? He's asking for how to do it without specifically having to add another class for the last element, that's the entire beauty of the :last-child selector. This shouldnt be an acce...
How to check if a column exists in Pandas
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To check if one or more columns all exist, you can use set.issubset, as in:
if set(['A','C']).issubset(df.columns):
df['sum'] = df['A'] + df['C']
As @brianpck points out in a comment, set([]) can alternatively be constructed with curly...
Inheriting class methods from modules / mixins in Ruby
...ors of the class. You can look at the ancestors of any class or module by calling its ancestors method:
module M
def foo; "foo"; end
end
class C
include M
def bar; "bar"; end
end
C.ancestors
#=> [C, M, Object, Kernel, BasicObject]
# ^ look, it's right here!
When you call a metho...
How to get index using LINQ? [duplicate]
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Because that's what all of the other LINQ methods use. It makes the delegate signature clearer in the tooltip. Predicate, Comparison, and friends were effectively replaced by the Func delegates in .Net 3.5.
– SLaks
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vim repeat find next character 'x'
... and ;), to a different character than the repetition of an edit (.). This allows you to do fast searches and changes to the search results. If you want to replace some + in a line with * you could do something like this (skipping some characters and replacing others): f+r*;.;;.;.;;;.
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What is the largest TCP/IP network port number allowable for IPv4?
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@JessieArr in both those cases it's not really a 65536 issue, it's an issue of A)programs not releasing connections, leaving them in a "WAIT" state that netstat shows combined with B)some earlier windows versions only going from 1024-5000 for dynamic ports.And even t...