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Discussing about Pipeline Expression in MongoDB

August 19, 2014 0 Comments
Discussing about Pipeline Expression in MongoDB

In the previous article we scratched the surface of the expression in pipeline. In this article we are going to discuss it in detail. What is the pipeline expression in mongodb? As the mongodb.org states pipeline expression in mongodb is Some pipeline stages takes a pipeline expression as its operand. Pipeline expressions specify the transformation [...]

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Working with Pipeline Concept in MongoDB

August 13, 2014 0 Comments
Working with Pipeline Concept in MongoDB

In the previous article we have discussed about aggregation framework. In the aggregation framework a certain concept named pipeline concept has a very important role to play. In this article we are going to discuss about that same pipeline concept in mongodb. What is pipeline concept in mongodb? In the UNIX command shell, pipeline means [...]

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How to Work with Aggregation Framework in MongoDB?

August 12, 2014 0 Comments
How to Work with Aggregation Framework in MongoDB?

In the previous article we have discussed about aggregation method in mongodb. In this article we are going to discuss about aggregation framework. Mongodb ver 2.2.0 supports aggregation framework. What is aggregation framework in mongodb? The aggregation framework in mongodb calculates aggregate values without the need for complex map-reduce operations. The aggregation framework is designed [...]

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Working with Aggregation in MongoDB

August 5, 2014 0 Comments
Working with Aggregation in MongoDB

In this article we will be discussing about aggregation in mongodb. What is aggregation in mongodb? As it states in mongodb.org “Aggregations are operations that process data records and return computed results.” So, in simple terms aggregation uses multiple documents together to group values. With those values aggregration can perform multiple operations and return only [...]

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Working with Index in MongoDB

July 31, 2014 2 Comments
Working with Index in MongoDB

In every database management system indexing is an essential attribute. Without indexing the system has to search the whole database in case of every queries. Which can prove very problematic. And in case of mongodb where we use blob data, can be disastrous with that much data. So, in this article we are going to [...]

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Working with Sharding in MongoDB

July 29, 2014 0 Comments
Working with Sharding in MongoDB

Mongodb is a data management system for blob data. So that means we can manage huge amounts of data through mongodb. So,storing this vast amount of data is the most challenging thing to do. When a single machine is unable to store this data or unable to provide an acceptable read and write throughput, problems [...]

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Replica Set Members in Mongodb

July 24, 2014 0 Comments
Replica Set Members in Mongodb

In the previous articles we have discussed many aspects of replica set in mongodb. And in those articles we have talked many things about members. So, what are these members? What is their purpose? Let us discuss about this things in this article. What are members in mongodb? In short terms the members in mongodb [...]

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Discussing Replication Lag in MongoDB

July 23, 2014 0 Comments
Discussing Replication Lag in MongoDB

In the previous article we have read about deployment of replica sets in mongodb. In the deployment process there is some complications that we did not discuss in the previous article. In this article we will get acknowledged with those complications and try to make them less complicated. So, in this article we are going [...]

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Deploying a Replica Set in MongoDB

July 22, 2014 0 Comments
Deploying a Replica Set in MongoDB

In this article we are going to discuss about how to deploy a replica set in mongo db. Deploying a replica set: Replica set can be deployed from single instances as well as from multiple instances. To get there we have to figure out how replica set function. As stated in mongodb.org replica set is [...]

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Short introduction on Express.js 4 New Features

July 21, 2014 0 Comments
Short introduction on Express.js 4 New Features

In this post we have tried to explain express.js 4 with some of it’s APIs. First of all, the new features of Express.js V4 – All the middlewares from connect are removed from Express. We have to bind all the middlewares in the project configuration file – package.json. A typical package.json file will look like [...]

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How to Promote Your Online Business

July 21, 2014 0 Comments
How to Promote Your Online Business

There is more than one way to skin a cat – and definitely more than one way to promote an online business. If you want to be sure your business and website are seen by as many people as possible, this article may help you achieve that aim. Every business needs to be promoted on [...]

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Introduction to Replication in MongoDB

July 18, 2014 1 Comment
Introduction to Replication in MongoDB

Mongodb has another feature called replication. In this article we will be going through the introduction and basics of replication. What is replication in mongodb? In simple terms replication is a process to synchronize data in multiple servers. This process provides us with redundancy and increases data availability with multiple copies of data on different [...]

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Map-Reduce in MongoDB

July 17, 2014 0 Comments
Map-Reduce in MongoDB

In this article we will try to understand the function of mapreduce in mongodb. At first we need to know what is map reduce? Let us see below. What is map reduce in mongodb? As per mongodb.org map-reduce in mongodb is a data processing paradigm for condensing large volumes of data into useful aggregated results. [...]

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Using sort method in mongodb

July 15, 2014 0 Comments
Using sort method in mongodb

In each database we maintain data in many ways. Regarding those ways we also have to consider the possibilities of sorting data in many ways regarding of many criteria. In this article we are going to understand different ways for sorting. Using sort method: sort() method accepts a document containing list of fields along with [...]

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How to Use Projection in MongoDB?

July 12, 2014 0 Comments
How to Use Projection in MongoDB?

In mongodb projection, it means  selecting only necessary data rather than selecting whole of the data of a document. If a document has 5 fields and you need to show only 3, then select only 3 fields from them. There are a few projection operators that mongodb provides helps us to reach that goal. Let [...]

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How to Import and Export Through Mongodb?

July 8, 2014 0 Comments
How to Import and Export Through Mongodb?

Introduction: Although while using mongodb we can create database and manipulate that same database. In real time we might have to import database from an external resource. That external database may be of json, csv or tsv file. And in other hand we might have to export mongodb database as Json format. In this article [...]

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How to Get Started with MongoDB?

July 5, 2014 1 Comment
How to Get Started with MongoDB?

In the previous article we have learned about mongodb as well as we have learnt how to install them in different OS. In this article we will learn how to run in different OS and many other things. How to get started with mongodb? To begin with mongodb we need to connect to a server [...]

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How to Get Started With Node?

July 4, 2014 0 Comments
How to Get Started With Node?

The face of web development today is dramatically different. The things that we can do on the web nowadays with JavaScript running on the server, as well as in the browser, were hard to imagine just several years ago, or were encapsulated within sandboxed environments like Flash or Java Applets. What is node.js? As Wikipedia [...]

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How to Get Started with MongoDB Database?

July 1, 2014 1 Comment
How to Get Started with MongoDB Database?

What is MongoDB? Mongodb is a cross-platform, document oriented database that provides, high performance, high availability, and easy scalability. It works on concept of collection and document. If the load increases, by adding more nodes. The performance can be retained. It can be used to store data for very high performance applications. What is document [...]

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Making a Stacked Bar Chart in D3

June 28, 2014 1 Comment
Making a Stacked Bar Chart in D3

Wherever we see data visualization we can see a bar chart. Weather it is a management issue or a project planning, even normal data visualization are also done by bar charts. For this reason bar charts have been modified in various type along the way. Previously we talked about basic and grouped chart. In this [...]

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