Another problem is that current SQL database systems permit the creation of tables that can contain duplicate rows. The relational model is based on set theory, and a set cannot contain duplicate ...

However, the success of relational databases could be boiled down to two practical considerations: momentum and the power of the SQL query language. So-called “NoSQL” technology seems to run ...

The public beta was some 10 years in the making, as Google engineers in 2007 began an effort to break the dichotomy between traditional SQL-based relational database management system (RDBMS) models ...

SQL provides predefined procedures so that you can use any value in a table to relate to other tables in a database. This helps explain why, odds are, you use a SQL relational database at your company ...

A new semantic-based graph data model has emerged within the enterprise. This data model has all of the advantages of the relational data model, but goes even further in providing for more ...

Learn the key differences between relational and NoSQL databases with this in-depth comparison. There’s nothing wrong with the traditional relational database management system. In fact, many ...

[Click on image for larger view.] SQL vs. N1QL: A Sample WHERE Query to Retrieve New Books (source: Couchbase) Couchbase exec Cihan Biyikoglu explained the idea in a blog post last June. "Relational ...