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Does MySQL ignore null values on unique constraints?
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4 Answers
4
Active
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Under what conditions is a JSESSIONID created?
...ct, must never be shared between
contexts by the container.
(Servlet 2.4 specification)
Update: Every call to JSP page implicitly creates a new session if there is no session yet. This can be turned off with the session='false' page directive, in which case session variable is not available on ...
What exactly do the Vagrant commands do?
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48
I agree with you that documentation at vagrantup is on the shorter side.
Some information can ...
Using a bitmask in C#
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public enum Names
{
None = 0,
Susan = 1,
Bob = 2,
Karen = 4
}
Then you'd check for a particular name as follows:
Names names = Names.Susan | Names.Bob;
// evaluates to true
bool susanIsIncluded = (names & Names.Susan) != Names.None;
// evaluates to false
bool karenIsInclude...
Does bit-shift depend on endianness?
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edited Mar 26 '18 at 2:42
answered Aug 25 '11 at 3:41
Ca...
what is the difference between ?:, ?! and ?= in regex?
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answered May 29 '12 at 18:43
sepp2ksepp2k
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Understanding repr( ) function in Python
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edited Apr 14 '17 at 8:44
Naseer Mohammad
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answered O...
How to get a complete list of object's methods and attributes?
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140
For the complete list of attributes, the short answer is: no. The problem is that the attribute...
Parallel.ForEach vs Task.Factory.StartNew
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4 Answers
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Turn off constraints temporarily (MS SQL)
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edited Jun 22 '11 at 14:53
Brian Gideon
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an...