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NewSQL is a category of SQL database products that address the performance and scalability issues posed by traditional online transaction processing (OLTP) relational database management systems (RDBMS).
Such systems aim to achieve the scalability of NoSQL systems while still providing the ACID attributes ensured by traditional relational databases. NewSQL databases are primarily intended for companies that handle high profile data and require scalability, but also need more consistency than NoSQL databases can provide. Although various NewSQL databases differ in their internal architectures, they all utilize the relational data model and run on SQL.
The label NewSQL is credited to an analyst firm called The 451 Group.