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How do you specify a different port number in SQL Management Studio?
I am trying to connect to a Microsoft SQL 2005 server which is not on port 1433. How do I indicate a different port number when connecting to the server using SQL Management Studio?
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How do I reverse a C++ vector?
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258
There's a function std::reverse in the algorithm header for this purpose.
#include <vector&...
How to create the most compact mapping n → isprime(n) up to a limit N?
...= 0:
return False
if n % 3 == 0:
return False
i = 5
w = 2
while i * i <= n:
if n % i == 0:
return False
i += w
w = 6 - w
return True
It's a variant of the classic O(sqrt(N)) algorithm. It uses the fact that a prime (exc...
List All Redis Databases
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answered Oct 9 '12 at 17:35
Didier SpeziaDidier Spezia
60.6k1010 gold badges156156 silver badges139139 bronze badges
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Stream.Seek(0, SeekOrigin.Begin) or Position = 0
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answered Aug 30 '11 at 5:22
gordygordy
7,92911 gold badge2626 silver badges3939 bronze badges
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How do you push a Git tag to a branch using a refspec?
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edited Jul 15 '13 at 19:45
answered Oct 31 '10 at 2:08
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Python assigning multiple variables to same value? list behavior
... are naming the same object, use the is operator:
>>> a=b=c=[0,3,5]
>>> a is b
True
You then ask:
what is different from this?
d=e=f=3
e=4
print('f:',f)
print('e:',e)
Here, you're rebinding the name e to the value 4. That doesn't affect the names d and f in any way.
I...
Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----
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edited Feb 4 '15 at 13:02
community wiki
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Run Cron job every N minutes plus offset
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529
To run a task every 20 minutes starting at 5 past the hour, try this:
5-59/20 * * * *
Expl...
Pandas: create two new columns in a dataframe with values calculated from a pre-existing column
..., 'b': [2,3,4]})
In [4]: df
Out[4]:
a b
0 1 2
1 2 3
2 3 4
In [5]: df["A1"], df["A2"] = zip(*df["a"].map(calculate))
In [6]: df
Out[6]:
a b A1 A2
0 1 2 2 3
1 2 3 4 6
2 3 4 6 9
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