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Include all existing fields and add new fields to document
I would like to define a $project aggregation stage where I can instruct it to add a new field and include all existing fields, without having to list all the existing fields.
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Managing CSS Explosion
I have been heavily relying on CSS for a website that I am working on. Right now, all the CSS styles are being applied on a per tag basis, and so now I am trying to move it to more of an external styling to help with any future changes.
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CSS – why doesn’t percentage height work? [duplicate]
...ock element defaults to the height of the block's content. So, given something like this:
<div id="outer">
<div id="inner">
<p>Where is pancakes house?</p>
</div>
</div>
#inner will grow to be tall enough to contain the paragraph and #outer will...
Embed SVG in SVG?
I have an SVG document, and I would like to include an external svg image within it, i.e. something like:
6 Answers
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How to order by with union in SQL?
... @marifrahman sorry to dig an old topic, but it may help others. In case you want the ORDER BY to be applied to the first part of the UNION, protect this SELECT with parenthesis.
– Lideln Kyoku
Jan 10 at 22:02
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How to Update Multiple Array Elements in mongodb
...ment it is not possible to use the positional operator to update all items in an array. See JIRA http://jira.mongodb.org/browse/SERVER-1243
As a work around you can:
Update each item individually
(events.0.handled events.1.handled
...) or...
Read the document, do the edits
manually and save it re...
twitter bootstrap typeahead ajax example
I'm trying to find a working example of the twitter bootstrap typeahead element that will make an ajax call to populate it's dropdown.
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Group a list of objects by an attribute : Java
I need to group a list of objects(Student) using an attribute(Location) of the particular object, the code is like below,
1...
MongoDB - Update objects in a document's array (nested updating)
Assume we have the following collection, which I have few questions about:
3 Answers
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How do I specify unique constraint for multiple columns in MySQL?
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ALTER TABLE `votes` ADD UNIQUE `unique_index`(`user`, `email`, `address`);
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