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What's the best way to join on the same table twice?
...n the SomeOtherFields would be null. If you want to make sure you have at least one matching phone number you could then do WHERE t2.PhoneNumber IS NOT NULL OR t3.PhoneNumber IS NOT NULL
The second method could have a problem: what happens if Table2 has both PhoneNumber1 and PhoneNumber2? Which r...
Why is Thread.Sleep so harmful
...ason to use it.
Thread.Sleep(n) means block the current thread for at least the number
of timeslices (or thread quantums) that can occur within n
milliseconds.
The length of a timeslice is different on different versions/types of
Windows and different processors and generally ranges fro...
Sometimes adding a WCF Service Reference generates an empty reference.cs
... assembly, you can select just that assembly and it works just as well (at least in my case), ta
– Dead.Rabit
Mar 20 '13 at 9:31
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How do you match only valid roman numerals with a regular expression?
...ches all the Roman numerals. Doesn't care about empty strings (requires at least one Roman numeral letter). Should work in PCRE, Perl, Python and Ruby.
Online Ruby demo: http://rubular.com/r/KLPR1zq3Hj
Online Conversion: http://www.onlineconversion.com/roman_numerals_advanced.htm
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What is the difference between float and double?
...g point types: float, double, and long double. The type double provides at least as much precision as float, and the type long double provides at least as much precision as double. The set of values of the type float is a subset of the set of values of the type double; the set of values of the type ...
Ember.js or Backbone.js for Restful backend [closed]
...lect these uses: Ember.js apps include Square's web dashboard, Zendesk (at least the agent/ticketing interface), and Groupon's scheduler: all applications a user might spend all day working in.
Backbone apps focus more on brief or casual interactions, that are often just small sections of a larger...
Parsing JSON from XmlHttpRequest.responseJSON
...eval anything you get from an outside source. Instead, use JSON.parse (at least in FF 3.5 and later).
– Ben Combee
Dec 29 '09 at 6:25
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How to change Git log date formats
...If you take a look at the commit linked to below, I believe you'll need at least Git v2.6.0-rc0 for this to work.
In a full command it would be something like:
git config --global alias.lg "log --graph --decorate
-30 --all --date-order --date=format:'%Y-%m-%d %H:%M:%S'
--pretty=format:'%C(cyan)%h%...
What is meant by “managed” vs “unmanaged” resources in .NET?
...em, and you probably want to
Dispose() of them as soon as you can, or at least offer your callers
the opportunity to do so. That's where writing your own Dispose()
method comes in. Essentially, implementing IDisposable() does two
things for you:
Allows you to get rid of any resources...
How to keep the local file or the remote file during merge using Git and the command line?
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I went through at least five stackoverflow answers before finding this, which is what I wanted. Thanks.
– Bolton Bailey
May 18 '19 at 8:13
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