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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's the difference between comma separated joins and join on syntax in MySQL? [duplicate]
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edited Oct 24 '17 at 3:13
answered Nov 22 '13 at 6:28
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@Scope(“prototype”) bean scope not creating new bean
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How would Git handle a SHA-1 collision on a blob?
...t, and get very very unlucky: one of the blobs ends up having the same SHA-1 as another that is already in your repository. Question is, how would Git handle this? Simply fail? Find a way to link the two blobs and check which one is needed according to the context?
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How do I access the host machine itself from the iPhone simulator
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The iOS Simulator uses the host machine network so you should be able to just use localhost or...
Is there something like Annotation Inheritance in java?
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edited Oct 29 '19 at 18:24
JuanMoreno
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PHP Difference between array() and []
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edited May 18 '16 at 5:35
e2-e4
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HtmlString vs. MvcHtmlString
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HtmlString only exists in ASP.NET 4.
MvcHtmlString was a compatibility shim added to MVC 2 to...
Copying files from host to Docker container
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INSTALL_FAILED_NO_MATCHING_ABIS when install apk
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edited Mar 21 '17 at 11:59
Vasily Kabunov
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