NoSQL with Hibernate OGM – Part two: Querying for your data

After the first final version of Hibernate OGM came out end of January the team has been busy crafting a series of tutorial-style blogs which give you the chance to start over easily with Hibernate OGM. The fist part was all about getting setup and persisting your first entity. In this second part you're going to learn how to query your data. Hibernate OGM will let you get your data in several different ways:

Introduction to MongoDB Security

View it on my new blog Last week at the Paris MUG, I had a quick chat about security and MongoDB, and I have decided to create this post that explains how to configure out of the box security available in MongoDB. You can find all information about MongoDB Security in following documentation chapter: http://docs.mongodb.org/manual/security/ In this post, I won't go into the detail about

Moving My Beers From Couchbase to MongoDB

See it on my new blog : here Few days ago I have posted a joke on Twitter Moving my Java from Couchbase to MongoDB pic.twitter.com/Wnn3pXfMGi — Tugdual Grall (@tgrall) January 26, 2015 So I decided to move it from a simple picture to a real project. Let’s look at the two phases of this so called project: Moving the data from Couchbase to MongoDB Updating the application code to use

NoSQL with Hibernate OGM – Part one: Persisting your first Entities

The first final version of Hibernate OGM is out and the team recovered a bit from the release frenzy. So they thought about starting a series of tutorial-style blogs which give you the chance to start over easily with Hibernate OGM. Thanks to Gunnar Morling (@gunnarmorling) for creating this tutorial.

Introduction
Don't know what Hibernate OGM is? Hibernate OGM is the newest project under the Hibernate umbrella and allows you to persist entity (more...)

Thoughts and notes, Thanksgiving weekend 2014

I’m taking a few weeks defocused from work, as a kind of grandpaternity leave. That said, the venue for my Dances of Infant Calming is a small-but-nice apartment in San Francisco, so a certain amount of thinking about tech industries is inevitable. I even found time last Tuesday to meet or speak with my clients at WibiData, MemSQL, Cloudera, Citus Data, and MongoDB. And thus:

1. I’ve been sloppy in my terminology around “geo-distribution”, in (more...)

Openworld 2014

Oracle OpenWorld

Are you going to Oracle OpenWorld 2014? I am, and I hope to see you there! As you probably know, OpenWorld is a humongous event with tens of thousands of people in attendance and some amazing presentations. Why, I even hear Oracle’s new CTO might be there. I wonder if he has anything to talk about?

This year we’ll have a ton of activity at the Delphix booth. You can check out the speaking schedule, (more...)

21st Century DBMS success and failure

As part of my series on the keys to and likelihood of success, I outlined some examples from the DBMS industry. The list turned out too long for a single post, so I split it up by millennia. The part on 20th Century DBMS success and failure went up Friday; in this one I’ll cover more recent events, organized in line with the original overview post. Categories addressed will include analytic RDBMS (including data (more...)

Editor’s Choice award at ODTUG Kscope14: NoSQL and Big Data for the Oracle Professional

My paper on NoSQL and Big Data won the Editor’s Choice award at ODTUG Kscope14. Here are some key points from the paper: The relational camp made serious mistakes that limited the performance and usefulness of the relational model. NoSQL is based on the incorrect premise that tables in the relational model must be mapped to […]

MongoDB is growing up

I caught up with my clients at MongoDB to discuss the recent MongoDB 2.6, along with some new statements of direction. The biggest takeaway is that the MongoDB product, along with the associated MMS (MongoDB Management Service), is growing up. Aspects include:

  • An actual automation and management user interface, as opposed to the current management style, which is almost entirely via scripts (except for the monitoring UI).
    • That’s scheduled for public beta in May, (more...)

NoSQL vs. NewSQL vs. traditional RDBMS

I frequently am asked questions that boil down to:

  • When should one use NoSQL?
  • When should one use a new SQL product (NewSQL or otherwise)?
  • When should one use a traditional RDBMS (most likely Oracle, DB2, or SQL Server)?

The details vary with context — e.g. sometimes MySQL is a traditional RDBMS and sometimes it is a new kid — but the general class of questions keeps coming. And that’s just for short-request use (more...)

ADF UI with MongoDB for persistence

The sample application (JDeveloper 12c / 12.1.2) can be downloaded from here.
This is a simple ADF application whose underlying business service implementation uses MongoDB for persistence.
The application allows create & update operations on a one-to-many data model (Department-Employees)

As shown in the screenshot below, you can (more...)

RDBMS and their bundle-mates

Relational DBMS used to be fairly straightforward product suites, which boiled down to:

  • A big SQL interpreter.
  • A bunch of administrative and operational tools.
  • Some very optional add-ons, often including an application development tool.

Now, however, most RDBMS are sold as part of something bigger.

How to implement Document Versioning with Couchbase

Introduction 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...)

SQL to NoSQL : Copy your data from MySQL to Couchbase

TL;DR: Look at the project on Github. Introduction 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...)

Six months as Technical Evangelist at Couchbase

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...)

Screencast : Fun with Couchbase, MapReduce and Twitter

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 User name Tags (more...)

NoSQL and Oracle, Sex and Marriage

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...)

Thirty years on, 10gen emulates Oracle

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...)

The 3 ways Hadoop will change your Business Intelligence

“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...)

InfoQ : Running the Largest Hadoop DFS Cluster

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...)