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How do I automatically update a timestamp in PostgreSQL
...update_modified_column()
RETURNS TRIGGER AS $$
BEGIN
NEW.modified = now();
RETURN NEW;
END;
$$ language 'plpgsql';
Apply the trigger like this:
CREATE TRIGGER update_customer_modtime BEFORE UPDATE ON customer FOR EACH ROW EXECUTE PROCEDURE update_modified_column();
...
difference between variables inside and outside of __init__()
...e I could access both kind of variables through the self reference. It was now, when I ran into trouble, that I researched the topic and cleared it up.
The problem with accessing static class variables through the
self reference is that it only references the static class variable if there is no i...
vbscript output to console
...lly switches to CSCript if required
Dim CONS: Set CONS = New cCONSOLE
'// Now we can use the Consol object to write to and read from the console
With CONS
'// Simply write a line
.print "CSCRIPT Console demo script"
'// Arguments are passed through correctly, if present
.Print ...
How to get a json string from url?
...em.Net.WebClient()) {
var json = webClient.DownloadString(URL);
// Now parse with JSON.Net
}
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Why do we need RESTful Web Services?
...tes that did not exist when the
browser was released? How can the
client know about these sites?
These may sound like inane questions, but if you know the answer, then you can start to see what REST is all about.
Look at StackOverflow for more benefits of REST. When I am looking at a question, I...
How to test code dependent on environment variables using JUnit?
...
I know this question is old, but I wanted to say that this is the correct answer. The accepted answer encourages poor design with a hidden dependency on System, whereas this answer encourages a proper design treating System as j...
Redirect stderr and stdout in Bash
... 2>&1
echo "This line will appear in $LOG_FILE, not 'on screen'"
Now, simple echo will write to $LOG_FILE. Useful for daemonizing.
To the author of the original post,
It depends what you need to achieve. If you just need to redirect in/out of a command you call from your script, the answ...
MySQL COUNT DISTINCT
... countVisits
, site_id As site
From cp_visits
Where ts >= DATE_SUB(NOW(), INTERVAL 1 DAY)
Group By site_id
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Difference between static memory allocation and dynamic memory allocation
I would like to know what is the difference between static memory allocation and dynamic memory allocation?
7 Answers
...
Node.js: Difference between req.query[] and req.params
...ok up a parameter in both places (as well as req.body), but this method is now deprecated.
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