Spring Data JPA 1.1.0 GA comes with CDI integration, new query keywords, declarative locking and a ton of bug fixes and improvements.

In the United States, in 1920, the manufacture, sale, and importation of alcoholic beverages was prohibited by a constitutional amendment. That amendment was repealed thirteen years later. During that period of prohibition, the beer industry died.

From workload profiling to the three rules of indexing, these expert insights are sure to make your MySQL servers scream

The first of a series of post that introduce MongoDB and PHP; this one focuses mainly on the installation of MongoDB.

After 1 year of Release Candidates OrientDB reaches the 1.0! Many news like Multi-Master replication, new Object Database interface to bind POJO automatically without Hibernate, new Server Side Scripting feature and much more.

Today I want to point out how cool is having no schema when it is time to add properties to your documents. Suppose that your Player entity changed and you add a new property called Description and you already saved some Players on RavenDb. The question is: what happens when you try to save a new Player now that the class has another property? What happens when you load an old entity, that was saved when that property did not exist?

A couple months ago I briefly reviewed Machine Learning for Hackers by Drew Conway and John Myles White. Today I’m looking at Machine Learning in Action by Peter Harrington and comparing the two books.

MongoDB ships without graphical tools for database administration: in Unix style, the command line is the standard way to manually interact with the database. In this article we'll take a look at the console and to the translation of classical SQL queries into Mongo's model.

This post describes how to build out the person configuration item in Skybase using Spring Data Neo4j.

Has Xeround provided the potential answer to "increasing demand" for developing MySQL apps on multiple cloud platforms?

Databases, tablespaces, and datafiles are closely related, but they have important differences: An Oracle database consists of one or more logical storage units called tablespaces, which collectively store all of the database's data.

Been doing some coding with Neo4J. Pretty interesting experience so far, but one thing is for sure: being able to write seriously sophisticated code that has a large, complex model underneath it, from inside unit tests that run in a few milliseconds is, as the bloodsucking credit card commercial says, priceless. There are still a couple of challenges to consider, but the reality is with a simple custom rule (using JUnit 4), you can have an embedded database that will be ready for each test, and cleaned up after each one.

The PostgreSQL Global Development Group announces the beta release of PostgreSQL 9.2, which will include major increases in performance and both vertical and horizontal scalability. The PostgreSQL Project asks all users to download and begin testing 9.2 Beta as soon as possible.

If you have table has a millions of rows and you want to update whole rows in table like below statement UPDATE TABLE_NAME SET COLUMN_NAME='XXXXXX'; COMMIT;

We can do that by 3 ways 1-Using a Groovy expression 2-Getter of attribute 3-Override view object create() method

Some more cool news has come out of this week's Lucene Revolution conference related to their theme of 'Solr's not just for search, it's for analytics. In addition to their Solr-as-a-Service cloud search platform, which is basically LucidWorks Enterprise on the cloud, Lucid Imagination has now announced the beta release of LucidWorks Big Data.

I want when creating new record in entity object to get default value of attribute from another attribute in another entity object.

After my talk during ConFoo on Advanced Date/Time Handling I received a question about whether the UTC-offset, together with the date/time in years, months, days, hours, minutes and seconds, was enough for storing a date/time in a database and still being able to do calculations with this. The answer to this question was no, but it lead to an even more interesting discussion about what would be enough to store an accurate date/time in a database.