Cloud database

Advanced queries expressed in SQL work well with the strict relationships that are imposed on information by relational databases.

This issue has been addressed with the addition of clustering enhancements to the relational databases, although some basic tasks require complex and expensive protocols, such as with data synchronization.

[6] Within NoSQL implemented storage, there are no requirements for fixed table schemas, and the use of join operations is avoided.

"The NoSQL databases have proven to provide efficient horizontal scalability, good performance, and ease of assembly into cloud applications.

"[7] Data models relying on simplified relay algorithms have also been employed in data-intensive cloud mapping applications unique to virtual frameworks.