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How to do a FULL OUTER JOIN in MySQL?
...e SAMPLE transcribed from this SO question you have:
with two tables t1, t2:
SELECT * FROM t1
LEFT JOIN t2 ON t1.id = t2.id
UNION
SELECT * FROM t1
RIGHT JOIN t2 ON t1.id = t2.id
The query above works for special cases where a FULL OUTER JOIN operation would not produce any duplicate rows. The ...
Gradient of n colors ranging from color 1 and color 2
I often work with ggplot2 that makes gradients nice ( click here for an example ). I have a need to work in base and I think scales can be used there to create color gradients as well but I'm severely off the mark on how. The basic goal is generate a palette of n colors that ranges from x colo...
Most efficient conversion of ResultSet to JSON?
...
24
The JIT Compiler is probably going to make this pretty fast since it's just branches and basic ...
Uninstall / remove a Homebrew package including all its dependencies
...
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edited Mar 29 '17 at 12:20
community wiki
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Is it better to call ToList() or ToArray() in LINQ queries?
...er modified after being created and has a high chance of landing in the Gen2 heap then you may be better off taking the extra allocation of ToArray up front.
In general though I find this to be the rarer case. It's much more common to see a lot of ToArray calls which are immediately passed to ot...
JavaScript pattern for multiple constructors
...
120
JavaScript doesn't have function overloading, including for methods or constructors.
If you wa...
How can I add a help method to a shell script?
...
where:
-h show this help text
-s set the seed value (default: 42)"
seed=42
while getopts ':hs:' option; do
case "$option" in
h) echo "$usage"
exit
;;
s) seed=$OPTARG
;;
:) printf "missing argument for -%s\n" "$OPTARG" >&2
echo "$usage" &g...
How to “inverse match” with regex?
...
72
(?!Andrea).{6}
Assuming your regexp engine supports negative lookaheads..
Edit: ..or maybe yo...
Is there a list of Pytz Timezones?
...pytz.all_timezones:
In [40]: import pytz
In [41]: pytz.all_timezones
Out[42]:
['Africa/Abidjan',
'Africa/Accra',
'Africa/Addis_Ababa',
...]
There is also pytz.common_timezones:
In [45]: len(pytz.common_timezones)
Out[45]: 403
In [46]: len(pytz.all_timezones)
Out[46]: 563
...