Apache Ignite Screencasts
Ignite's memory-centric architecture provides rich support for SQL queries including distributed joins, full ACID transactions, key-value data store, collocated processing, elastic scalability, and high availability.
Take a look at how this works.
Ignite Web Console - Automatic RDBMS Integration
This tutorial is divided in to 3 parts- Part 1 shows how to automatically import schema metadata from an RDBMS; Part 2 shows how to start an Ignite cluster and load data from the database; Part 3 shows how to use Ignite web console to run sql queries on distributed data stored across the cluster.