Can Any body tell me how SQL is useful...

Answer 1

SQL is used for data definition and manipulation, SQL is useful when you need to do something that requires the use of databases, for example, this SoloLearn app certainly have database for storing member profile, course info, Q&A forum discussion conversations, codes written by members etc.

Hth, cmiiw

Answer 2

SQL -> Structure Query Language is used for Database Management. You can search on internet for further information.

Answer 3

databases