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What does the KEY keyword mean?
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This is not correct. I found the best answer in Quora (see user Kristian Kohntopp) quora.com/…: KEY is a constraint, INDEX is the data structure necessary to implement that constraint. In practice, if you have a FK for example KEY key_name (user_id), CONST...
Can IntelliJ IDEA encapsulate all of the functionality of WebStorm and PHPStorm through plugins? [cl
... other IDE choices and the options they provide.
I'm thinking WebStorm is best for JavaScript and Git repo management, meaning the HTML5 CSS Cordova kinds of stacks, which is really where (I believe along with others) the future lies and energies should be focused now... but ya it depends on your n...
add created_at and updated_at fields to mongoose schemas
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Agreed, this is the best option in Mongoose 4.0.
– Tadd Giles
Nov 18 '15 at 20:58
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What is a “Bitmap heap scan” in a query plan?
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The best explanation comes from Tom Lane, which is the algorithm's author unless I'm mistaking. See also the wikipedia article.
In short, it's a bit like a seq scan. The difference is that, rather than visiting every disk page, ...
R memory management / cannot allocate vector of size n Mb
...() does not recover all possible memory and closing/re-opening R works the best to start with maximum memory available.
the other trick is to only load train set for training (do not load the test set, which can typically be half the size of train set). The training phase can use memory to the maxim...
Font size in CSS - % or em?
...se today. This is
a technique you can put in your kit
bag and use as a best practice for
sizing text in CSS that satisfies both
designers and readers.
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Setting table column width
...date]</td>
</tr>
</tbody>
</table>
The best practice is to keep your HTML and CSS separate for less code duplication, and for separation of concerns (HTML for structure and semantics, and CSS for presentation).
Note that, for this to work in older versions of Inte...
How can I run dos2unix on an entire directory? [closed]
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It's probably best to skip hidden files and folders, such as .git. So instead of using find, if your bash version is recent enough or if you're using zsh, just do:
dos2unix **
Note that for Bash, this will require:
shopt -s globstar
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Facebook Callback appends '#_=_' to Return URL
...t support the awesome HTML 5 history methods then just clean up the URL as best you can by setting the hash to empty string. This is a poor fallback because it still leaves a trailing hash (example.com/#) and also it adds a history entry, so the back button will take you back to #_-_.
Learn more ...
Adding a directory to the PATH environment variable in Windows
...om its parent.
You didn't specify how you started the console session. The best way to ensure this is to exit the command shell and run it again. It should then inherit the updated PATH environment variable.
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