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Grouped LIMIT in PostgreSQL: show the first N rows for each group?
I need to take the first N rows for each group, ordered by custom column.
5 Answers
5
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Android preferences onclick event
...onPreferenceTreeClick event.
For example see http://www.javased.com/index.php?source_dir=platform_packages_apps_phone/src/com/android/phone/MobileNetworkSettings.java
@Override
public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
/** TODO:...
How do you find the disk size of a Postgres / PostgreSQL table and its indexes
...ema || '"."' || table_name || '"')) AS size
FROM information_schema.tables
ORDER BY
pg_total_relation_size('"' || table_schema || '"."' || table_name || '"') DESC;
Edit: Here's the query submitted by @phord, for convenience:
SELECT
table_name,
pg_size_pretty(table_size) AS table_size,...
Views vs Components in Ember.js
...able Components when a route is entered, instead of a controller/view. In order to future proof your app, it's best to stay away from Views.
Sources:
Road to Ember 2.0: https://github.com/emberjs/rfcs/pull/15
Future-proofing your Ember 1.x code: https://gist.github.com/samselikoff/1d7300ce59d21...
Getting the name of the currently executing method
...
virgo47's answer (upvoted) actually computes the right index to apply in order to get back the method name.
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Inspect attached event handlers for any DOM element
...ce 2010.
Also, the event listeners shown for the selected node are in the order in which they are fired through the capturing and bubbling phases.
Hit command + option + i on Mac OSX and Ctrl + Shift + i on Windows to fire this up in Chrome
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Fixing the order of facets in ggplot
...e) to facet_grid(.~size_f)
Then plot:
The graphs are now in the correct order.
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How can you customize the numbers in an ordered list?
How can I left-align the numbers in an ordered list?
16 Answers
16
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How to study design patterns? [closed]
...me people already mentioned, practice and refactoring. I believe the right order to learn about patterns is this:
Learn Test Driven Development (TDD)
Learn refactoring
Learn patterns
Most people ignore 1, many believe they can do 2, and almost everybody goes straight for 3.
For me the key to im...
Setting HTTP headers
... })
}
}
Endpoint
REMEBER! Middlewares get applyed on reverse order( ExpectGET() gets fires first)
mux.Handle("/watcher/{action}/{device}",Adapt(api.SerialHandler(mux),
api.EnableCORS(),
api.ExpectGET(),
))
...