If we learn sql what does it helps for

Answer 1

SQL is for querying databases where the data is laid out in rows and columns (tables). I tend to think of it as a way of looking up information in a giant stack of spreadsheets without disrupting any of the spreadsheets accidentally (very roughly speaking).

Answer 2

Sql helps u manage ur database for one.
If u have any intentions of hosting sites and even some game programming, it will help in the long run to know some sql