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How update the _id of one MongoDB Document?

...t in a variable doc = db.clients.findOne({_id: ObjectId("4cc45467c55f4d2d2a000002")}) // set a new _id on the document doc._id = ObjectId("4c8a331bda76c559ef000004") // insert the document, using the new _id db.clients.insert(doc) // remove the document with the old _id db.clients.remove({_id: Ob...
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Difference between a Seq and a List in Scala

... Daniel C. SobralDaniel C. Sobral 280k8282 gold badges469469 silver badges666666 bronze badges ...
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Create a tar.xz in one command

...member to man tar :) tar cfJ <archive.tar.xz> <files> Edit 2015-08-10: If you're passing the arguments to tar with dashes (ex: tar -cf as opposed to tar cf), then the -f option must come last, since it specifies the filename (thanks to @A-B-B for pointing that out!). In that case, th...
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How to delete object from array inside foreach loop?

... answered Feb 21 '10 at 2:56 prodigitalsonprodigitalson 57.1k77 gold badges8888 silver badges108108 bronze badges ...
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compilation warning: no rule to process file for architecture i386

... 30 Because this is the list of source files that will be compiled, and normally you have already included <file>.h inside your <file&g...
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How to count occurrences of a column value efficiently in SQL?

... | edited Oct 1 '09 at 16:38 answered Oct 1 '09 at 13:30 ...
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Sorting data based on second column of a file

... Matt RyallMatt Ryall 8,02355 gold badges2121 silver badges1818 bronze badges ...
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Android Paint: .measureText() vs .getTextBounds()

... +100 You can do what I did to inspect such problem: Study Android source code, Paint.java source, see both measureText and getTextBounds ...
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Some font-size's rendered larger on Safari (iPhone)

...o your body, just for the iPhone: @media screen and (max-device-width: 480px){ body{ -webkit-text-size-adjust: none; } } share | improve this answer | follow ...
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Right mime type for SVG images with fonts embedded

... answered Aug 13 '12 at 8:20 Erik DahlströmErik Dahlström 52.4k1111 gold badges106106 silver badges121121 bronze badges ...