

Rick Grehan
Contributing Editor
Rick Grehan is a longtime InfoWorld reviewer and a professional software developer who currently works for Oracle.

Review: Elasticsearch 7 soars with SQL, search optimizations
Across-the-board upgrade beefs up query capabilities, boosts cluster performance, and simplifies cluster configuration

Review: RethinkDB rethinks real-time Web apps
RethinkDB's NoSQL document store delivers high-speed change notifications for super-responsive apps

Review: Stretch your NoSQL database with MarkLogic 8
Enterprise-oriented document database brings powerful indexing and flexible querying to a broad range of data types
Review: Aerospike kicks scale-out NoSQL into high gear
Aerospike Server leverages memory and SSDs to bring extremely high throughput to a flexible, scalable key-value database

Review: Connect your data better with Neo4j
Designed for linking relationships, the Neo4j graph database combines speed, ease, and extreme flexibility, though the query language may take some getting used to
Big data showdown: Cassandra vs. HBase
Bigtable-inspired open source projects take different routes to the highly scalable, highly flexible, distributed, wide column data store

Big data showdown: Cassandra vs. HBase
Bigtable-inspired open source projects take different routes to the highly scalable, highly flexible, distributed, wide column data store.
Review: HBase is massively scalable -- and hugely complex
Apache HBase offers extreme scalability, reliability, and flexibility, but at the cost of many moving parts
Cassandra lowers the barriers to big data
Cassandra excels at scaling writes and reads, and its "masterless" architecture makes creating and expanding clusters relatively straightforward. Here's why Cassandra should be high on the list for organizations seeking a datastore...
Review: Cassandra lowers the barriers to big data
Apache Cassandra 2.0 combines NoSQL flexibility and scalability with friendly SQL-like queries
Review: 4 supercool JavaScript tools for data visualization
Free, open source D3, InfoViz, Processing.js, and Recline.js bring dynamic, interactive -- and jaw-dropping -- data-driven graphics to the Web browser