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How to convert milliseconds to “hh:mm:ss” format?
...INUTES.toSeconds(1));
Still using the TimeUnit API for all magic values, and gives exactly the same output.
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MySQL ON vs USING?
In a MySQL JOIN , what is the difference between ON and USING() ? As far as I can tell, USING() is just more convenient syntax, whereas ON allows a little more flexibility when the column names are not identical. However, that difference is so minor, you'd think they'd just do away with USI...
POSTing a @OneToMany sub-resource association in Spring Data REST
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You have to post the comment first and while posting the comment you can create an association posts entity.
It should look something like below :
http://{server:port}/comment METHOD:POST
{"author":"abc","content":"PQROHSFHFSHOFSHOSF", "post":"http://{serve...
Is there a difference between x++ and ++x in java?
Is there a difference between ++x and x++ in java?
16 Answers
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Is Enabling Double Escaping Dangerous?
...ath.
Finally, a very simple, if limited workaround is simply to avoid '+' and use '%20' instead. In any case, using the '+' symbol to encode a space is not valid url encoding, but specific to a limited set of protocols and probably widely supported for backwards-compatibility reasons. If only for...
How to rollback just one step using rake db:migrate
After adding migration files in the db/migrate folder and running rake db:migrate , I want get back to the previous step, I think using VERSION=n is the right way to do that, but I don't know the correct value of n to use. Is there any command to check the current n value?
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PostgreSQL disable more output
...t, run it with -q or set QUIET=1 in the environment.
To produce results and throw them away you can redirect stdout to /dev/null with:
psql db -f sql.sql >/dev/null
You can redirect both stdout and stderr with:
psql db -f sql.sql >&/dev/null
but I don't recommend that, as it'll th...
Python creating a dictionary of lists
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Oh. This is great. And you don't have to initialize to '= []'. Good stuff!
– Wilmer E. Henao
Dec 7 '17 at 23:16
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Rails - Could not find a JavaScript runtime?
...js solves this
To install nodejs on ubuntu, you can type the following command in the terminal:
sudo apt-get install nodejs
To install nodejs on systems using yum, type the following in the terminal:
yum -y install nodejs
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How to Git stash pop specific stash in 1.8.3?
...ash@{1} is ambiguous?" for some detailed hints of what may be going wrong, and how to work around it in various shells and platforms.
git stash list
git stash apply stash@{n}
git stash apply version
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