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PostgreSQL array_agg order
...plying the input values from a sorted subquery will usually work, however. For example:
SELECT xmlagg(x) FROM (SELECT x FROM test ORDER BY y DESC) AS tab;
So in your case you would write:
SELECT
array_to_string(array_agg(animal_name),';') animal_names,
array_to_string(array_agg(animal_type),...
Rounding BigDecimal to *always* have two decimal places
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Thanks for RoundingMode.HALF_UP. As per documentation it is the rounding method commonly taught in schools - what I needed.
– silver
Jul 16 '17 at 5:40
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Temporarily disable Eclipse plugin
...in provides view, you will need to close those views (in all perspectives) for this to work.
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Pros and Cons of SQLite and Shared Preferences [closed]
What is the good mechanism to store information among SQLite database and Shared Preferences?
5 Answers
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error: Libtool library used but 'LIBTOOL' is undefined
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A good answer for me was to install libtool:
sudo apt-get install libtool
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Correct way to populate an Array with a Range in Ruby
...ted Jun 24 '15 at 10:56
Waiting for Dev...
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answered Jul 5 '11 at 18:22
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How to set std::tuple element by index?
...const version of get returns a reference. You can assign to the reference. For example, suppose t is tuple, then: get<0>(t) = 3;
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Designer Added then removed by Visual Studio on load/unload
Anyone see this before? I have a large Visual Studio project that keeps adding [Subtype]Designer[/Subtype] to my .vcproj then removing it on the next open and close of the project. There is only one class defined in StoredImageControl.cs . Anyone know how to shut this off as it is really mess...
Configuration With Same Name Already Exists
... 'Create new solution configurations' checkbox was causing the issue for me. Thanks for the solution!!!
– Vikram
Apr 24 '14 at 21:36
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Can I make the foreign key field optional in Django model
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Sure, just add blank=True, null=True for each field that you want to remain optional like
subject = models.ForeignKey(subjects, blank=True, null=True)
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