Spark SQL, part of Apache Spark big data framework, is used for structured data processing and allows running SQL like queries on Spark data.

Lovefield is a JavaScript library providing an SQL-like query engine to web developers who want the benefits of a relational database.

Enabling SQL-style queries With Enumerable constructor you have to use query methods, but to write queries in SQL-like format, JSINQ provides with jsinq.Query constructor.

SQL Server 2016 lets you treat JSON objects like rows in a table, allowing you to use data from AJAX queries in joins, updates and any other SQL statement you can think of.

Apache Phoenix: Its developers call it a “SQL skin for HBase” — a way to query HBase with SQL-like commands via an embeddable JDBC driver built for high performance and read/write operations.

Want faster SQL queries? Here are nine best practices for writing SQL queries that work like a charm (or at least, like they should).

Dino Esposito explains JSON-to-rowset native support in SQL Server 2016 and provides a realistic perspective of data query when you have JSON data stored in the database.