Added database courses by Scaler and Simplilearn (#11455)

* Added database courses by Scaler and Simplilearn

* Added database courses by Scaler and Simplilearn

* Added database courses by Scaler and Simplilearn

* Added database courses by Scaler and Simplilearn

* Add Database courses by Scaler and Simplilearn

* Add database courses by Scaler and Simplilearn

* Updtaed DBMS course name by Scaler

courses/free-courses-en.md

@@ -574,6 +574,7 @@
 * [DBMS Placement Series](https://www.youtube.com/playlist?list=PLDzeHZWIZsTpukecmA2p5rhHM14bl2dHU) - CodeHelp by Babbar
 * [DML Server Administration](https://alison.com/course/databases-dml-statements-and-sql-server-administration-revised) (Alison)
 * [Introduction to Databases](https://lagunita.stanford.edu/courses/Engineering/db/2014_1/about) (Stanford University)
+* [Introduction to the Fundamentals of Databases](https://www.simplilearn.com/learn-basics-of-databases-free-course-skillup) (Simplilearn)
 * [Learn SQL Basic for Data Science Specialisation](https://www.coursera.org/specializations/learn-sql-basics-data-science#about) (Coursera)
 
 

more/free-programming-interactive-tutorials-en.md

@@ -11,6 +11,7 @@
 * [CoffeeScript](#coffeescript)
 * [Dart](#dart)
 * [Data Science](#data-science)
+* [DBMS](#dbms)
 * [Erlang](#erlang)
 * [Git](#git)
 * [GLSL](#glsl)
@@ -133,6 +134,11 @@
 * [Top 10 Data Science Projects for Beginners - KDnuggets](https://www.kdnuggets.com/2021/06/top-10-data-science-projects-beginners.html)
 
 
+### DBMS
+
+* [DBMS Course - Master the Fundamentals and Advanced Concepts](https://www.scaler.com/topics/course/dbms/) - Srikanth Varma (Scaler Topics)
+
+
 ### Erlang
 
 * [Try Erlang](http://www.tryerlang.org)