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orderBy multiple fields in Angular
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Chubby BoyChubby Boy
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What does -D_XOPEN_SOURCE do/mean?
...h as Windows.
The numbers refer to different versions of the standard.
500 - X/Open 5, incorporating POSIX 1995
600 - X/Open 6, incorporating POSIX 2004
700 - X/Open 7, incorporating POSIX 2008
You can tell which one you need (if any) by looking at the man page for each function you call.
For ...
What are the obj and bin folders (created by Visual Studio) used for?
I created a new project in Visual Studio 2010 and noticed that there are now two new folders named obj and bin in my project directory.
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How to get the top 10 values in postgresql?
...or this you can use limit
select *
from scores
order by score desc
limit 10
If performance is important (when is it not ;-) look for an index on score.
Starting with version 8.4, you can also use the standard (SQL:2008) fetch first
select *
from scores
order by score desc
fetch first 10 rows ...
What is the effect of encoding an image in base64?
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answered Jul 9 '12 at 20:13
BlenderBlender
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running Rails console in production
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if you're running rails 3.0 or greater, you can also use
rails console production
production can of course be substituted with development or test (value is development by default)
Adding the option --sandbox makes it so that any changes you make...
Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
... use the disk to temporarily store messages if it runs out of RAM. After 2.0, Rabbit has significantly improved on its RAM usage. Clustering options are also available.
In regards to AMQP, I would say a really cool feature is the "exchange", and the ability for it to route to other exchanges. This...
How do you delete an ActiveRecord object?
...like
user.destroy
User.find(15).destroy
User.destroy(15)
User.where(age: 20).destroy_all
User.destroy_all(age: 20)
Alternatively you can use delete and delete_all which won't enforce :before_destroy and :after_destroy callbacks or any dependent association options.
User.delete_all(condition: ...
How to copy in bash all directory and files recursive?
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edited Jun 27 '17 at 1:08
zviad
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answered Jun 18 '14 at 5:45
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