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Showing posts with the label Mapreduce
Mongoose / Mongodb: Count Elements In Array

Mongoose / Mongodb: Count Elements In Array

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I'm trying to count the number of occurrences of a string in an array in my collection using Mo… Read more Mongoose / Mongodb: Count Elements In Array
Accessing Mongodb's Object From Mapper (mapreduce)

Accessing Mongodb's Object From Mapper (mapreduce)

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I have an extra question based on the one I asked before: calculate frequency using mongodb aggrega… Read more Accessing Mongodb's Object From Mapper (mapreduce)
How Can Get Newest Document Just Using The Map

How Can Get Newest Document Just Using The Map

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I have document like the following, I want to use map function to get the latest status with given … Read more How Can Get Newest Document Just Using The Map
Calculate Average Of Duplicates In A Javascript Array Of Objects

Calculate Average Of Duplicates In A Javascript Array Of Objects

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I have an array of objects: [ {'market': 'Qacha's nek','commodity': 55,… Read more Calculate Average Of Duplicates In A Javascript Array Of Objects
Merging Object's Attribute In Rereduce Function Resulted In Wrong Value Each Time The View Is Created

Merging Object's Attribute In Rereduce Function Resulted In Wrong Value Each Time The View Is Created

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This is follow up from this question How to merge objects attributes from reduce to rereduce functi… Read more Merging Object's Attribute In Rereduce Function Resulted In Wrong Value Each Time The View Is Created
Techniques For Storing Libraries In Mongodb's System.js

Techniques For Storing Libraries In Mongodb's System.js

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Are there any reliable techniques for storing prototype-based libraries/frameworks in mongoDB's… Read more Techniques For Storing Libraries In Mongodb's System.js