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How to make connection to Postgres via Node.js
I find myself trying to create a postgres database, so I installed postgres and started a server with initdb /usr/local/pgsql/data , then I started that instance with postgres -D /usr/local/pgsql/data now how can I interact with this through node? For example, what would the connectionstring be...
SQL Group By with an Order By
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In all versions of MySQL, simply alias the aggregate in the SELECT list, and order by the alias:
SELECT COUNT(id) AS theCount, `Tag` from `images-tags`
GROUP BY `Tag`
ORDER BY theCount DESC
LIMIT 20
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How many double numbers are there between 0.0 and 1.0?
...st to note, when I wrote 100 to 100.1 I miswrote. I meant 100 to 101. Basically, between N and N+1 for arbitrary N.
– polygenelubricants
Jun 5 '10 at 3:15
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UITableView, Separator color where to set?
...ve added a UITableView in IB and set the "delegate" and "datasource" and all is working well. What I wanted to do next was change the separator color, but the only way I could find to do this was to add the method to one of the delegate callbacks, is there a better place I should put this?
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Difference between scaling horizontally and vertically for databases [closed]
...ses and scalability is one of them. What is the difference between horizontally and vertically scaling these databases?
10 ...
(Built-in) way in JavaScript to check if a string is a valid number
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A very important note about parseInt is that it will allow you to specify a radix for converting the string to an int. This is a big gotcha as it tries to guess a radix for you if you don't supply it. So, for example: parseInt("17") results in 17 (decimal, 10), but parseInt("...
How to prevent SIGPIPEs (or handle them properly)
I have a small server program that accepts connections on a TCP or local UNIX socket, reads a simple command and, depending on the command, sends a reply. The problem is that the client may have no interest in the answer sometimes and exits early, so writing to that socket will cause a SIGPIPE and m...
Running Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 on the same machine
..., but you'll thank yourself in the long run. In my experience, you can't really get them cleanly installed side by side and unless they are standalone installs you can't really verify that it is 100% true-to-browser rendering.
Update: Looks like one of the better ways to accomplish this (if running...
How do I tokenize a string in C++?
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C++ standard library algorithms are pretty universally based around iterators rather than concrete containers. Unfortunately this makes it hard to provide a Java-like split function in the C++ standard library, even though nobody argues that this would be convenient. But wha...
Test if characters are in a string
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@Josh O'brien, that post compared finding (counting) all the matches in a single long string, try finding 1 match in a bunch of shorter strings: vec <- replicate(100000, paste( sample(letters, 10, replace=TRUE), collapse='') ).
– Greg Snow
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