The main benefits of Microsoft SQL Server are improved reliability, better performance, reduced network traffic and increased scalability. Drawbacks are an increased deployment cost and a more complex support environment.
PostgreSQL is a powerful, open source object-relational database system that uses and extends the SQL language combined with many features that safely store and scale the most complicated data workloads.
MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software. It is a stable ,reliable and the powerful solution with the advanced features and advantages, such as data security, high performance, flexibility and etc.
Redis, an open source, in-memory, data structure server is frequently used as a distributed shared cache because it enables true statelessness for an applications’ processes, while reducing duplication of data or requests to external data sources.
MongoDB is an object-oriented, simple, dynamic, and scalable NoSQL database. It is based on the NoSQL document store model. The motivation of the MongoDB language is to implement a data store that provides high performance, high availability, and automatic scaling.
A Blockchain is, an immutable time-stamped series record of data that is distributed and managed by cluster of computers. Initially, used for Bitcoin and other cryptocurrencies blockchain has now found use cases in several industries including finance, real estate, and health.