NoSQL communities have picked up the trend to abandon
relational properties in favor of high-scalability by only supporting
Key-Value type accesses in their data stores. However, abandoning
SQL and its feature has nothing to do with Scalability. Another
significant development in advanced database technology is
‘‘Polyglot Persistence’’, i.e. using multiple data storage technologies
based upon the way data are being used by individual applications.
The simple logic behind ‘‘Polyglot Persistence’’ is why store binary
images in a relational database, when there are better storage systems
for the same?
The following are some of the issues for selection of a particular
NoSQL database: