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How can I rename a field for all documents in MongoDB?
...d:x._id}, {$set:{"name.last":x.name.additional}, $unset:{"name.additional":1}});
}
}
db.foo.find().forEach(remap);
In MongoDB 3.2 you can also use
db.students.updateMany( {}, { $rename: { "oldname": "newname" } } )
The general syntax of this is
db.collection.updateMany(filter, update, optio...
What does [ N … M ] mean in C aggregate initializers?
From sys.c line 123:
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How to add a vertical Separator?
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This should do exactly what the author wanted:
<StackPanel Orientation="Horizontal">
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Difference between Django's annotate and aggregate methods?
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I would focus on the example queries rather than your quote from the documentation. Aggregate ...
How can I create an array with key value pairs?
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Use the square bracket syntax:
if (!empty($row["title"])) {
$catList[$row["datasource_id"...
How to make an immutable object in Python?
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Yet another solution I just thought of: The simplest way to get the same behaviour as your or...
“render :nothing => true” returns empty plaintext file?
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UPDATE: This is an old answer for legacy Rails versions. For Rails 4+, see William Denniss' po...
Using .NET, how can you find the mime type of a file based on the file signature not the extension
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Specifying colClasses in the read.csv
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answered May 10 '10 at 18:36
George DontasGeorge Dontas
26.7k1717 gold badges100100 silver badges138138 bronze badges
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Decoding JSON using json.Unmarshal vs json.NewDecoder.Decode
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