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ReadOnlyCollection or IEnumerable for exposing member collections?
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How to write an async method with out parameter?
...rs.
Lucian Wischik explains why this is not possible on this MSDN thread: http://social.msdn.microsoft.com/Forums/en-US/d2f48a52-e35a-4948-844d-828a1a6deb74/why-async-methods-cannot-have-ref-or-out-parameters
As for why async methods don't support out-by-reference parameters?
(or ref paramete...
How can I convert bigint (UNIX timestamp) to datetime in SQL Server?
...,'19700101 05:00:00:000')
If you want to go reverse, take a look at this http://wiki.lessthandot.com/index.php/Epoch_Date
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C# nullable string error
... except for string.
The following page gives a list of the C# primitives:
http://msdn.microsoft.com/en-us/library/aa711900(v=vs.71).aspx
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How do you configure logging in Hibernate 4 to use SLF4J
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Look to https://github.com/jboss-logging/jboss-logging/blob/master/src/main/java/org/jboss/logging/LoggerProviders.java:
static final String LOGGING_PROVIDER_KEY = "org.jboss.logging.provider";
private static LoggerProvider findPro...
How do you clone a Git repository into a specific folder?
...your case this would be something like:
ln -sfn /opt/projectA/prod/public /httpdocs/public
Which easily could be changed to test if you wanted it, i.e.:
ln -sfn /opt/projectA/test/public /httpdocs/public
without moving files around. Added -fn in case someone is copying these lines (-f is force, -...
NOT IN vs NOT EXISTS
...nt to NOT EXISTS when it comes to null.
This post explains it very well
http://sqlinthewild.co.za/index.php/2010/02/18/not-exists-vs-not-in/
When the subquery returns even one null, NOT IN will not match any
rows.
The reason for this can be found by looking at the details of what the
...
Sleep Command in T-SQL?
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Simple example of threading in C++
...ck and was instrumental in hammering out the c++0x standard on the topic.
http://www.hpl.hp.com/techreports/2004/HPL-2004-209.html
That said there are several cross-platform thread C++ libraries that work just fine in practice. Intel thread building blocks contains a tbb::thread object that closel...
What is a Y-combinator? [closed]
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I've lifted this from http://www.mail-archive.com/boston-pm@mail.pm.org/msg02716.html which is an explanation I wrote several years ago.
I'll use JavaScript in this example, but many other languages will work as well.
Our goal is to be able to w...