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Revision
So you think you can count
Round and other functions
22. Function sqrt()
Revision and practice

## Instruction

Perfect. The last function we want to introduce is sqrt(x), which calculates the square root of x (\sqrt{x}).

SELECT sqrt(25);

The square root of 25 is 5 and this is the result we'll get from the above query. Let's give it a try again.

## Exercise

A nasty curse in our game changes your strength to its square root for a few minutes. Show each character's name, strength and calculate the square root of strength for each of them.