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How do I create a unique constraint that also allows nulls?
...R TABLE dbo.Party ADD SamAccountNameUnique
AS (Coalesce(SamAccountName, Convert(varchar(11), PartyID)))
ALTER TABLE dbo.Party ADD CONSTRAINT UQ_Party_SamAccountName
UNIQUE (SamAccountNameUnique)
You simply have to put something in the computed column that will be guaranteed unique across the...
Implement touch using Python?
touch is a Unix utility that sets the modification and access times of files to the current time of day. If the file doesn't exist, it is created with default permissions.
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Difference between Math.Floor() and Math.Truncate()
What is the difference between Math.Floor() and Math.Truncate() in .NET?
12 Answers
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Iterating C++ vector from the end to the beginning
... ++i ) {
}
rbegin()/rend() were especially designed for that purpose. (And yes, incrementing a reverse_interator moves it backward.)
Now, in theory, your method (using begin()/end() & --i) would work, std::vector's iterator being bidirectional, but remember, end() isn't the last element —...
Can I use a binary literal in C or C++?
... 2 formatting with STL streams (since setbase will only honour bases 8, 10 and 16), but you can use either a std::string version of itoa, or (the more concise, yet marginally less efficient) std::bitset.
#include <boost/utility/binary.hpp>
#include <stdio.h>
#include <stdlib.h>
#i...
How to check edittext's text is email address or not?
... the text of edittext is email address or not without using javascript and regular expression?
Here I used inputtype="textEmailAddress" this is working but no error message is display.
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Calculate the median of a billion numbers
If you have one billion numbers and one hundred computers, what is the best way to locate the median of these numbers?
25 A...
Save and load MemoryStream to/from a file
I am serializing an structure into a MemoryStream and I want to save and load the serialized structure.
9 Answers
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How to send password securely over HTTP?
...ser:password@your.domain.com/login (Chrome, for example will automatically convert it into Authorization header)
IMPORTANT:
As pointed out by @zaph in his comment below, sending sensitive info as GET query is not good idea as it will most likely end up in server logs.
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Best way to store date/time in mongodb
... use in your map-reduce jobs, for example.
If you need to, you can easily convert Date objects to and from Unix timestamps1), using the getTime() method and Date(milliseconds) constructor, respectively.
1) Strictly speaking, the Unix timestamp is measured in seconds. The JavaScript Date object mea...