I\'m just wondering if this is possible to do in a single request? Given { _id: 1, foo: { fred: {},// <- I want to remove empty keys like this
So i am starting to make this new app that will be a software as a service (SAAS), I hav开发者_运维知识库e been looking at MongoDB but after reading some posts i get the impression that its not stable
SELECT (a+b) as c FROM my_table ORDER BY c ASC; How can I order by two column开发者_如何学Pythons sum in Mongo?You can\'t do it easy without an extra action.
Disclaimer: by referential Data, i do not mean referential integrity I am learning nosql and would like to understand how data should be modeled.In a typical relational database for an CMS applicatio
I am trying to manually fix some documents in my Mongo database which contain the Unicode replacement character (looks like a question mark, see http://www.fileformat.info/info/unicode/char/fffd/index
I am trying to create an oplog watcher in ruby. So far ive come up with a small script below. require \'rubygems\'
I need to know where I can find the reference resource for MongoDB runCommand. i.e. what kind of commands are av开发者_StackOverflow中文版ailable and what kind of optional parameters each command can
mongodb version v1.8.0 on Mac 10.6.8. I\'m trying to run a mongoimport on a TSV (tab separated value) file.
The three types of NoSQL databases I\'ve read about is key-value, column-oriented, and document-oriented.
I just installed MongoDB 2.0 and tried to run the compact command instead of the repair command in earlier versions. My database is empty at the moment, meaning there is only one collection with 0 ent
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