In this article, the author is talking to Dr. Jim Webber about Neo4j and the value of graph databases, and how the major players' adoption of graphs have meant more attention for graph databases.
NoSQL was held up to the be the way to horizontally scale Big Data and Web applications and to bring a new level of simplicity to data storage and retrieval. So what happened to the buzz around NoSQL?
The author has been playing around with Neo4j unmanaged extensions recently and wanted to be able to check that it worked properly without having to deploy it to a real Neo4j server. CommunityServerBuilder allows users to do so.
Optimistic locking is very handy for preventing lost updates, and you can use it even if you've chosen to move away from RDBMS to MongoDB storage. In this article, you'll learn how.
How do you objectively measure the popularity of a DB engine? Good question! There's an Austrian company who claims to have the answer. Among the top 10 DB engines, MongoDB is the only non-RDBMS representative, and some other ratings are surprising as well.
MongoDB users interested in working with Node.js (or Node.js users looking at MongoDB) may find this tutorial to be particularly useful. It covers all the steps to connect Node.js to a MongoDB database on a VPS, and provides all the resources one might need to quickly catch up on either one.
Make sure you didn't miss anything with this list of the Best of the Week in the Mobile Zone. This week's best include a presentation on Marvel's use of graph theory and NoSQL for the Marvel Universe, an announcement about iterable collections in Redis, and first entry in a series on modeling data in Neo4j.
The main benefit of this conference for me was meeting most of the usual suspects from the London Java Community.
Your app is booming, you need more web servers, and you need to serve users and keep their user experience. When you had a single server you used session for that, but now how do you keep sessions across multiple web servers? Offloading web servers sessions to MongoDB looks like a great solution
A recent blog post suggests that distributed database systems may not be as universally useful as many believe them to be. Is there too much hype surrounding distributed databases, or is there more to the story?
Today the author would like to introduce you to Spring Data Neo4j. To this end he implemented a little showcase application. The context of the showcase is a shop system in which it would be useful to calculate what other users also viewed – as known from many popular shopping e-commerce websites.
The overall idea behind this app is that Users can post their own Vine videos, to be voted on by the public to see who has the Funniest Vine videos globally. So without further hesitation, let's dive in and see how we can build a gamified application atop-of Couchbase using Ruby and Rails.
Through examples such as Hawkeye and his various identities, traits, and so on, Peter Olson describes a market in which story arcs and relationships between characters are not only valuable data, but a dataset so expansive that it requires emerging techniques to manage and analyze.
In this article - the first in the "Modelling Data in Neo4j for Beginners" series - we look at a common mistake made when modeling bidirectional relationships.
One problem for online retailers is working out whether there is a suitable substitute product if an ordered item isn’t in stock. Since this problem brings together three types of data – order history, stock levels and products – it should be a nice fit for Neo4j, so the author ‘graphed up’ a quick example.
There are situations where your documents have many different fields and you want to be able to query efficiently on any of them. Say you have a document describing a person. Then you may want to find all people with blue eyes, or any other property. How can you use indexing to quickly resolve these queries?
You've probably read about the new features in Blackbirds Release 2.0. The big ticket items include geo-distribution, automation, and java stored procedures. In addition to these awesome new features, NuoDB slipped in support for ZFS, specifically Native ZFS on Linux.
Make sure you didn't miss anything with this list of the Best of the Week in the NoSQL Zone. This week's best include a how-to for using MongoDB as a pure in-memory database, a tutorial to help you make major speed increases in MongoDB, and a discussion of labels, indexes, and so on in Neo4j 2.0.
There are 6 major features for RavenDB 3.0 that we want to keep as surprises. But leaving those major features aside, there is a lot of stuff that we are doing that would deserve a bullet point all on its own. And today I want to talk about one of those features, S2S Smuggling.
Faceted search can involve a wide variety of predicates and sort criteria. It typically involves a web UI where the user can pick from many fields and sort on most of those fields. It is a hard problem to solve for a database, because in theory you would have to create all the possible combinations of compound indices.
Recently, Redis creator Salvatore Sanfilippo announced that Redis collections are now iterable. In the past, Redis collections have been difficult to navigate, so more practical techniques for working with them are definitely welcome.
A very common feature of any social site (and other types of application) is to find the latest activity of one’s friends. Many new NoSQL stores do not really support secondary indexes, which are necessary for this feature. In the case of MongoDB, it is possible to do it efficiently, but it presents many pitfalls.
Makes cents? Get it? N1QL (pronounced Nickel) is a human readable/writable, extensible language designed for ad-hoc and operational querying within Couchbase. In this article, you'll find a complete overview of the features and uses of N1QL.
This set of slides from Kenny Bastani covers the use of Neo4j for natural language search, which allows you to query databases using natural language.
The expressive power of Cypher is already awesome and getting better with the Neo4j 2.0 release. Let’s take a step back from the bleeding edge and see Cypher in 1.9.4 and how it can be translated into Java.