This video introduces the OpenSource library Hades that significantly eases implementing data access layers with JPA. It takes the audience on a guided tour through code samples introducing the features of Hades: * Executing queries by only declaring interface methods * Extending the EntityManager to provide a typed interface, programmatic …
This talk will cover what a few Oracle experts (but MySQL newbies) learned in a recent migration at NPR.org. It discusses how we separated our previously monolithic database into smaller, more functionally cohesive databases and some of the criteria we used to decide what tables ended up where. This architecture …
Even with ORMs like ActiveRecord, DataMapper which ease the pain of relational data storage, considerable developer effort goes into wrangling Ruby objects into their databases. This is true even when working with Document-oriented databases where the nested data structures more closely map to Ruby objects. Aqua is a new, proof-of-concept …
MariaDB is a community developed, backward compatible, drop-in replacement branch of the MySQL(R) Database Server. What is MariaDB all about, and what is its future? What can you do with new features added in the first GA release of MariaDB 5.1, such as additional Storage Engines (Maria, PBXT, XtraDB, FederatedX), …
This video walks through the basics of creating your first database using pgAdmin, the comprehensive database design and management console for Postgres databases. Created for first time users of Postgres, you’ll also be introduced to the fundamental features in pgAdmin and be ready to start creating databases, entering data, and …
MongoDB is a document based database engine. Learn how to access it through MongoMapper in this episode. http://railscasts.com/episodes/194-mongodb-and-mongomapper
