List/Grid Tag Archives: NoSQL

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Stop Claiming that you’re Using a Schemaless Database

One of MongoDB’s arguments when evangelising MongoDB is the fact that MongoDB is a “schemaless” database: Why Schemaless? MongoDB is a JSON-style data store. The documents stored ...
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MongoDB Incremental Migration Scripts

Introduction An incremental software development process requires an incremental database migration strategy. I remember working on an enterprise application where the hibernate.hbm2ddl.auto ...
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Integration testing done right with Embedded MongoDB

Introduction Unit testing requires isolating individual components from their dependencies. Dependencies are replaced with mocks, which simulate certain use cases. This way, we can ...
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Introduction to MongoDB Geospatial feature

This post is a quick and simple introduction to Geospatial feature of MongoDB 2.6 using simple dataset and queries. Storing Geospatial Informations As you know you can store any type ...
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It’s not NoSQL versus RDBMS, it’s ACID + foreign keys versus eventual consistency

The Background Coming from a diverse background and having dealt with a number of distributed systems, I routinely find myself in a situation where I need to explain why foreign keys ...
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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 ...
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How to Use Projection in MongoDB?

In mongodb, projection means selecting only necessary data rather than selecting the whole data of a document. If a document has 5 fields and you need to show only 3, then select only ...
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Custom Cassandra Data Types

In the blog post Connecting to Cassandra from Java, I mentioned that one advantage for Java developers of Cassandra being implemented in Java is the ability to create custom Cassandra ...
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NoSQL – A Quick Guide

NoSQL is buzz word nowadays among the developers and software professionals. 1. What is NoSQL ? NoSQL database, also called Not Only SQL, is an approach to data management and database ...
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NoSQL on Android

There are various NoSQL solutions for mobile platforms such as the iOS and Android. Here, we will look at Couchbase Lite (CBL – the successor of TouchDB), a lightweight, full-featured, ...
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