Developers are often asking me how to "version" documents with Couchbase 2.0. The short answer is: the clients and server do not expose such feature, but it is quite easy to implement.
In this article I will use a basic approach, and you will be able to extend (more...)
TL;DR: Look at the project on Github.
During my last interactions with the Couchbase community, I had the question how can I easily import my data from my current database into Couchbase. And my answer was always the same:
Take an ETL such as Talend to do it
Just write a (more...)
Already 6 months! Already 6 months that I have joined Couchbase as Technical Evangelist. This is a good opportunity to take some time to look back.
So first of all what is a Developer/Technical Evangelist?
Hmm it depends of each company/product, but let me tell you what it is for (more...)
I have created this simple screencast to show how you can, using Couchbase do some realtime analysis based on Twitter feed.
The key steps of this demonstration are
Inject Tweets using a simple program available on my Github Couchbase-Twitter-Injector
Create views to index and query the Tweets by
At last week’s Dallas Oracle Users Group meeting
, an Oracle DBA asked me, “With all the new database alternatives out there today, like all these open source NoSQL databases, would you recommend for us to learn some of those?”
I told him I had a theory about how (more...)
It's now more than thirty years since I first came across the Oracle database. At that time, Oracle had only just got a distributor in the UK (a small part of CACI, with just three staff: Geoff Squire, Mike Evans and Chris Ellis - soon to be joined by Ian (more...)
“It’s the analytics stupid!” Obviously the offense is not intended at the dear reader. It’s a wake up call for all the people excited with Hadoop and lack BI vision. The BI people that lack infrastructure vision are also to blame. Blame for what? We’ll see later in this (more...)
Since I joined a Big Data Event : Frankfurter Datenbanktage 2013 - I started to take also a look to non-relational technics too. The RDBMS is not for every asepct the correct and fitting and fulfilling answer to all data related IT challenges.
Frequently I wondered about how facebook (more...)
A friend of mine wants to build a simple system to capture ideas, and votes. Even if you can find many online services to do that, I think it is a good opportunity to show how easy it is to develop new application using a Couchbase and Node.js.
I read this question on Twitter, let me answer the question in this short article.
First of all you need to be sure your documents have an attribute that contains a date ;), something like :
To get the "latest hired employee" you need to create a view, and emit (more...)
Most of the applications have to deal with "master/detail" type of data:
breweries and beer
department and employees
invoices and items
This is necessary for example to create application view like the following:
With Couchbase, and many of the document oriented databases you have different ways to deal with this, (more...)
Back in March 2012 I experienced an air milage overflow: almost straight from Madrid I’ve picked a flight to Israel to speak at a Big Data conference, only to be back in Lisbon and fly again to Johannesburg in South Africa to meet several customers in the retail and manufacturing area. Back to Lisbon I packed again to London [...]
EclipseLink 2.4.0 Juno - RELEASED
As part of the Juno Eclipse release train the EclipseLink project has released EclipseLink 2.4.0. The release landing page
describes some of the new and noteworthy features as well as providing links to documentation and examples so you can get started. (more...)
Observing the NoSQL hype through the eyes of an SQL performance consultant is an interesting experience. It is, however, very hard to write about NoSQL because there are so many forms of it. After all, NoSQL is nothing more than a marketing term. A marketing term that works pretty well because it goes to the heart of many developers that struggle with SQL every day.
My unrepresentative observation is that NoSQL is often taken for performance reasons. Probably because SQL performance problems are an everyday experience. NoSQL, on the other hand, is known to “scale well”. However, performance is often (more...)