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SQL order string as number
...h forces a conversion to number
select col from yourtable
order by col + 0
BTW MySQL converts strings from left to right. Examples:
string value | integer value after conversion
--------------+--------------------------------
'1' | 1
'ABC' | 0 /* the string does not cont...
Difference between no-cache and must-revalidate
...t the response becomes stale right away.
If a response is cacheable for 10 seconds, then must-revalidate kicks in after 10 seconds, whereas no-cache implies must-revalidate after 0 seconds.
At least, that's my interpretation.
...
What is the point of Lookup?
... (Type type in lookup["System"])
{
Console.WriteLine("{0}: {1}",
type.FullName, type.Assembly.GetName().Name);
}
}
}
(I'd normally use var for most of these declarations, in normal code.)
...
What is a Context Free Grammar?
...le of a formal language is the set of all binary strings of length three, {000, 001, 010, 011, 100, 101, 110, 111}.
Grammars work by defining transformations you can make to construct a string in the language described by a grammar. Grammars will say how to transform a start symbol (usually S) into...
How do I add files without dots in them (all extension-less files) to the gitignore file?
...uld want to version:
git add -f -- myFile
Note that with git 2.9.x/2.10 (mid 2016?), it might be possible to re-include a file if a parent directory of that file is excluded if there is no wildcard in the path re-included.
Nguyễn Thái Ngọc Duy (pclouds) is trying to add this feature:
co...
GIT merge error “commit is not possible because you have unmerged files”
...l with it?
– R11G
Jun 19 '13 at 12:50
1
I had to do this for a file that was deleted in a branch ...
How do I use the conditional operator (? :) in Ruby?
...form for readability on multiple lines:
question = if question.size > 20 then
question.slice(0, 20) + "..."
else
question
end
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Unable to modify ArrayAdapter in ListView: UnsupportedOperationException
...
Shamim Ahmmed
7,60966 gold badges2222 silver badges3535 bronze badges
answered Jul 8 '10 at 4:15
st0lest0le
...
How to determine a user's IP address in node
...
470
In your request object there is a property called connection, which is a net.Socket object. The ...
Why is require_once so bad to use?
...
109
require_once and include_once both require that the system keeps a log of what's already been i...