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Why does NULL = NULL evaluate to false in SQL server
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Think of the null as "unknown" in that case (or "does not exist"). In either of those cases, you can't say that they are equal, because you don't know the value of either of them. So, null=null evaluates to not true (false or null, depending on you...
Where can I set environment variables that crontab will use?
...$base
fi
exec $cmd ${@:+"$@"}
(Written using an older coding standard - nowadays, I'd use a shebang '#!' at the start.)
The '~/.cronfile' is a variation on my profile for use by cron - rigorously non-interactive and no echoing for the sake of being noisy. You could arrange to execute the .profi...
How do I modify the URL without reloading the page?
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This can now be done in Chrome, Safari, Firefox 4+, and Internet Explorer 10pp4+!
See this question's answer for more information:
Updating address bar with new URL without hash or reloading the page
Example:
function processAja...
The target … overrides the `OTHER_LDFLAGS` build setting defined in `Pods/Pods.xcconfig
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@msmq It's been a long time now, but do you remember the workaround that you tried and got it working? $(inherited) is already there at the top line but it doesn't work for me :/
– Kostas Dimakis
Aug 27 '19 at 21:5...
Nested Git repositories?
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The blog seems to work fine now, and unfortunately for sage, the 34 (now 35) up-votes on the comment seems to agree that there is a value in the blog article. Turns out you don't have to sacrifice accuracy for clarity and operation-specific advice. Afte...
Recommended way of making React component/div draggable
...nd could probably even wrap it in a nice closure interface, but I want to know if there's a way that meshes with React better.
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jQuery: Get height of hidden element in jQuery
...eed to get height of an element that is within a div that is hidden. Right now I show the div, get the height, and hide the parent div. This seems a bit silly. Is there a better way?
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How to enter in a Docker container already running with a new TTY
...er exec -it will eventually provide a fully-functional pseudo tty, but for now (Docker version 1.9.1), there are some shortcomings : github.com/docker/docker/issues/8755
– blong
Jan 5 '16 at 3:11
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Excel: last character/string match in a string
...ink how to apply without lengthy recursive algorithm. And this solution now seems obsolete.
12 Answers
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What is the best way to implement nested dictionaries?
...ber in data.items():
vividict[state][county][occupation] = number
And now:
>>> import pprint
>>> pprint.pprint(vividict, width=40)
{'new jersey': {'mercer county': {'plumbers': 3,
'programmers': 81},
'middlesex county': {'progr...