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Getting All Variables In Scope
...
No. "In scope" variables are determined by the "scope chain", which is not accessible programmatically.
For detail (quite a lot of it), check out the ECMAScript (JavaScript) specification. Here's a link to the official page where you can download the canonical spe...
What is event bubbling and capturing?
...receive the event.
With bubbling, the event is first captured and handled by the innermost element and then propagated to outer elements.
With capturing, the event is first captured by the outermost element and propagated to the inner elements.
Capturing is also called "trickling", which helps re...
How to show the last queries executed on MySQL?
...round the filesystem looking for the query log - or even worse, distracted by the need for the perfect destination. /var/log /var/data/log /opt /home/mysql_savior/var
You don't have to restart the server and interrupt any current connections to it.
restarting the server leaves you where you started...
What's the difference between a catalog and a schema in a relational database?
... using the same Postgres server engine.
The word cluster is also defined by the SQL Standard in the same way as in Postgres. Closely following the SQL Standard is a primary goal of the Postgres project.
The SQL-92 specification says:
A cluster is an implementation-defined collection of catalo...
Eclipse copy/paste entire line keyboard shortcut
...ing Intel HD Graphics, it's quite possible that these shortcuts are binded by Intel graphics util. You can disable hotkeys from notification area util -> Graphic Options -> Hot Keys -> Disable. After that I could use those useful shortcuts.
– Taavi Ilves
...
Merge Images Side by Side(Horizontally)
...Magick ships with the montage utility. Montage will append each image side-by-side allowing you to adjust spacing between each image (-geometry), and the general layout (-tile).
montage [0-5].png -tile 5x1 -geometry +0+0 out.png
Other examples can be found on Montage Usage page
...
Fetch the row which has the Max value for a column
...ect userid,
my_date,
...
max(my_date) over (partition by userid) max_my_date
from users
)
where my_date = max_my_date
"Analytic functions rock"
Edit: With regard to the first comment ...
"using analytic queries and a self-join defeats the purpose of analytic queries"
Ther...
ViewPager and fragments — what's the right way to store fragment's state?
...d so it simply tries to reconnect with it with FragmentManager.findFragmentByTag(), instead of creating a new one. All of this comes free when using the FragmentPagerAdapter and is why it is usual to have your fragment initialisation code inside the getItem(int) method.
Even if we were not using a ...
jQuery counting elements by class - what is the best way to implement this?
...t form. Basically I'm allowing users to click on a <span> and then by doing so add another one for more of the same type of items. But I can't think of a way to count all of these simply with jQuery/JavaScript.
...
PostgreSQL Autoincrement
...OT NULL DEFAULT nextval('user_id_seq')
);
ALTER SEQUENCE user_id_seq OWNED BY user.user_id;
Better to use your own data type, rather than user serial data type.
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