The non-relational database explosion of the late 2000s was motivated by several disenchantments with the—until then—dominant relational database model. A key concern for many involved the overly ...

A database that maintains a set of separate, related files (tables), but combines data elements from the files for queries and reports when required. The concept was developed in 1970 by Edgar Codd, ...

It’s not exactly clear where we are in the Gartner Hype Cycle with respect to so-called “NoSQL” databases. We’ve definitely been through the Trough of Disillusionment, but are we in the Slope of ...

Operational non-relational systems—key-value stores and document databases—have been slower to adopt SQL query capabilities. Cassandra implemented Cassandra query language (CQL), a simple subset of ...

Though NoSQL originally developed as a flexible and agile alternative to relational database systems, non-relational databases haven’t yet gained wide acceptability in the large enterprise segment.