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Comparing Dates in Oracle SQL
...
TO_DATE()
select employee_id
from employee
where employee_date_hired > to_date('31-DEC-95','DD-MON-YY')
This method has a few unnecessary pitfalls
As a_horse_with_no_name noted in the comments, DEC, doesn't necessarily mean December. It depends on your NLS_DATE_LANGUAGE and NLS_DATE_FORM...
Ruby send vs __send__
...
def send(*args)
false
end
end
foo = Foo.new
foo.send(:bar?)
# => false
foo.__send__(:bar?)
# => true
If you override __send__, Ruby will emit a warning:
warning: redefining `__send__' may
cause serious problems
Some cases where it would be useful to override send would be ...
How do I update/upsert a document in Mongoose?
...search for "update" on the page. Looks like this: MyModel.update({ age: { $gt: 18 } }, { oldEnough: true }, fn); and MyModel.update({ name: 'Tobi' }, { ferret: true }, { multi: true }, fn);
– CpILL
Mar 15 '12 at 17:57
...
How to round the minute of a datetime object
... microseconds=tm.microsecond)
tm -= discard
if discard >= datetime.timedelta(minutes=5):
tm += datetime.timedelta(minutes=10)
or this:
tm += datetime.timedelta(minutes=5)
tm -= datetime.timedelta(minutes=tm.minute % 10,
seconds=tm.second,
...
How to get the parent dir location
...th.split(os.sep)[:-n])
# __file__ = "/aParent/templates/blog1/page.html"
>>> uppath(__file__, 1)
'/aParent/templates/blog1'
>>> uppath(__file__, 2)
'/aParent/templates'
>>> uppath(__file__, 3)
'/aParent'
...
Mongoose: Get full list of users
...Each (missing closing bracket);
server.get('/usersList', (req, res) =>
User.find({}, (err, users) =>
res.send(users.reduce((userMap, item) => {
userMap[item.id] = item
return userMap
}, {}));
);
);
cheers!
...
Remove substring from the string
...
You can use the slice method:
a = "foobar"
a.slice! "foo"
=> "foo"
a
=> "bar"
there is a non '!' version as well. More info can be seen in the documentation about other versions as well:
http://www.ruby-doc.org/core/classes/String.html#method-i-slice-21
...
Removing duplicate rows in Notepad++
...ns of Notepad++, or be possible to add from the menu by going to Plugins -> Plugin Manager -> Show Plugin Manager -> Available tab -> TextFX -> Install. In some cases it may also be called TextFX Characters, but this is the same thing.
The check boxes and buttons required will now app...
Drop all duplicate rows across multiple columns in Python Pandas
..."foo", "foo", "bar","foo"], "B":[0,1,1,1,1], "C":["A","A","B","A","A"]})
>>>df.drop_duplicates( "A" , keep='first')
or
>>>df.drop_duplicates( keep='first')
or
>>>df.drop_duplicates( keep='last')
...
In Python, how do I use urllib to see if a website is 404 or 200?
...code that was sent with the response, or None if the URL is no HTTP URL.
>>> a=urllib.urlopen('http://www.google.com/asdfsf')
>>> a.getcode()
404
>>> a=urllib.urlopen('http://www.google.com/')
>>> a.getcode()
200
...