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Turning a Comma Separated string into individual rows
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@NickW this may be because the parts before and after UNION ALL return different types from the LEFT function. Personally I don't see why you wouldn't jump to MAX once you get to 4000...
– RichardTheKiwi
Feb 22 '12 at 8:35
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What is a regular expression which will match a valid domain name without a subdomain?
...ote, to use this regex, you will need to convert the domain to lower case, and also use an IDN library to ensure you encode domain names to ACE (also known as "ASCII Compatible Encoding"). One good library is GNU-Libidn.
idn(1) is the command line interface to the internationalized domain name libr...
How do I interpret precision and scale of a number in a database?
...rget that if you're using a system that allows you to pre-define precision and scale of an input for a percentage in something like Microsoft Access, you must consider the percent as it's whole number form. In this case, 25.5% would require precision 4 and scale of 3 (not one) since we have to cons...
What is the most efficient string concatenation method in python?
... Guido. Although it is worth remembering also that this is an old article and it predates the existence of things like ''.join (although I guess string.joinfields is more-or-less the same)
On the strength of that, the array module may be fastest if you can shoehorn your problem into it. But ''.jo...
How can I generate random alphanumeric strings?
How can I generate a random 8 character alphanumeric string in C#?
33 Answers
33
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Dependency Walker reports IESHIMS.DLL and WER.DLL missing?
...un Dependency Walker on an executable of mine it reports that:
IESHIMS.DLL and WER.DLL can't be found.
4 Answers
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Foreign Key to multiple tables
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You have a few options, all varying in "correctness" and ease of use. As always, the right design depends on your needs.
You could simply create two columns in Ticket, OwnedByUserId and OwnedByGroupId, and have nullable Foreign Keys to each table.
You could create M:M referen...
How to flatten tree via LINQ?
...er style", convert Flatten to a generic extension method that takes a tree and a function that produces descendants from a node:
public static IEnumerable<T> Flatten<T>(
this IEnumerable<T> e
, Func<T,IEnumerable<T>> f
) => e.SelectMany(c => f(c).Flatten(f)...
How to check if one of the following items is in a list?
... S2 = set(L2)
>>> S1.intersection(S2)
set([2])
Both empty lists and empty sets are False, so you can use the value directly as a truth value.
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Make an existing Git branch track a remote branch?
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Given a branch foo and a remote upstream:
As of Git 1.8.0:
git branch -u upstream/foo
Or, if local branch foo is not the current branch:
git branch -u upstream/foo foo
Or, if you like to type longer commands, these are equivalent to the above...