Check out example codes for "microsoft sql server". It will help you in understanding the concepts better.

Code Example 1

/* Answer to: "microsoft sql server" */

  Microsoft SQL Server is a relational database management
  system developed by Microsoft. As a database server, it is a
  software product with the primary function of storing and
  retrieving data as requested by other software
  applications—which may run either on the same computer or on
  another computer across a network.

Learn ReactJs, React Native from