Difference between Redis and MS SQL Server

1: Redis : Redis stands for Remote Dictionary Server which is an in-memory data structure project implementing a distributed, in-memory key–value database with optional durability. Redis is developed by Redis labs and initially released on May 10, 2009. It is written in ANSI and C languages. Redis offers memory efficiency, fast operating speed, high availability and provides some features like tunability, replication, clustering, etc. 2. MS SQL Server : Microsoft SQL Server is a relational database management system (RDBMS) which is platform dependent and it is both GUI and command based software. It supports a wide variety of transaction processing, business intelligence and analytics applications in corporate IT environments. It was developed by Microsoft Corporation and initially released on April 24, 1989. It is written in C and C++ language.
Difference between Redis and MS SQL Server :

S.NO.	Redis	MS SQL SERVER
1.	It is developed by Redis labs and initially released on May 10, 2009.	It is developed by Microsoft Corporation and initially released on April 24, 1989.
2.	It is written in ANSI and C languages.	It is written in C and C++.
3.	The primary database model for Redis is Key-Value store.	The primary database model for MS SQL Server is Relational DBMS.
4.	The license for Redis is Open Source.	The license for MS SQL Server is Commercial.
5.	It does not support XML data format.	It supports XML data format.
6.	Redis is Data Schema free.	In MS SQL Server the data schema is Fixed.
7.	It does not support SQL.	It can support SQL.
8.	It does not have Triggers.	It has Triggers.
9.	It does not have Foreign Keys.	It provides Foreign Keys for the Referential Integrity.
10.	Server operating systems for Redis are BDS, Linux, OS X, Windows.	Server operating systems for MS SQL Server are Linux Windows.
11.	Famous companies like Twinkl Educational Publishing, Merrill Corporation, ASOS.com Limited, Owler, Inc., etc uses Redis.	Famous companies like Citi, Bank of America, UPS, etc uses MS SQL Server.