Hi!
Actually, I have data in the influx, that data is in string, now I want to visualize the data but it is not visible on dashboard.
Can any one inform me how can I convert it through the grafana query?
welcome to the 
forum, @syedmuslimjameel
Have you tried using the convert field type transformation?
Welcome
Why do you have an int as string? Any sort of manipulation/conversion will only tank performance
I would highly encourage you to change the data type