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Can you create nested WITH clauses for Common Table Expressions?
...xpressions to reuse previous queries in subsequent ones.
To do this, the form of the statement you are looking for would be
WITH x AS
(
SELECT * FROM MyTable
),
y AS
(
SELECT * FROM x
)
SELECT * FROM y
share
...
VIM + Syntastic: how to disable the checker?
...functionality to disable Syntastic for just those problem files. A simpler form of the 'SyntasticDisableToggle' solution outlined by the primary contributor works for me:
"disable syntastic on a per buffer basis (some work files blow it up)
function! SyntasticDisableBuffer()
let b:syntastic_ski...
Convert duration to hours:minutes:seconds (or similar) in Rails 3 or Ruby
...hour"
Option 2:
Time.at(total_seconds).utc.strftime("%H:%M:%S") #=> "01:00:00"
Option 3:
seconds = total_seconds % 60
minutes = (total_seconds / 60) % 60
hours = total_seconds / (60 * 60)
format("%02d:%02d:%02d", hours, minutes, seconds) #=> "01:00:00"
use Option1 if you want words, O...
How to get past the login page with Wget?
...
You don't need cURL to do POSTed form data. --post-data 'key1=value1&key2=value2' works just fine. Note: you can also pass a file name to wget with the POST data in the file.
sha...
Why number 9 in kill -9 command in unix? [closed]
...tially from 1. These integers are defined in with
symbolic names of the form SIGxxxx . Since the actual numbers used for
each signal vary across implementations, it is these symbolic names
that are always used in programs.
...
Print all day-dates between two dates [duplicate]
...
Then you can use it as follows:
In: list(datetime_range(start=datetime(2014, 1, 1), end=datetime(2014, 1, 5)))
Out:
[datetime.datetime(2014, 1, 1, 0, 0),
datetime.datetime(2014, 1, 2, 0, 0),
datetime.datetime(2014, 1, 3, 0, 0),
datetime.datetime(2014, 1, 4, 0, 0),
datetime.datetime(2014, 1, ...
How to do date/time comparison
...heck.Before(end)
}
func main() {
start, _ := time.Parse(time.RFC822, "01 Jan 15 10:00 UTC")
end, _ := time.Parse(time.RFC822, "01 Jan 16 10:00 UTC")
in, _ := time.Parse(time.RFC822, "01 Jan 15 20:00 UTC")
out, _ := time.Parse(time.RFC822, "01 Jan 17 10:00 UTC")
if inTimeSpan(s...
Coalesce function for PHP?
...avaScript (i.e. $val || 'default'), I would find ?: to be a more practical form of coalescing if in our practice we ultimately find ourselves handling both empty and null in the same way (i.e. $val ?: 'default'). And if you want to force the issue further and swallow E_NOTICE, you could argue this e...
String comparison using '==' vs. 'strcmp()'
...ell... no one answer seemed to compile at once the use of strcmp(), the performance of ===, and the bad reliability of == for string comparisons... so I added mine to the list.
– Balmipour
Aug 31 '17 at 17:19
...
How to get the unix timestamp in C#
...tamp in C# by using DateTime.UtcNow and subtracting the epoch time of 1970-01-01.
e.g.
Int32 unixTimestamp = (Int32)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds;
DateTime.UtcNow can be replaced with any DateTime object that you would like to get the unix timestamp for.
Ther...