How to select standard deviation within a row? (in SQL - or R :)

Question

I wonder whether there is a way to select the standard deviation from several integer fields in MySQL within the same row. Obviously, if I use

Answer 1

With R:

df <- your.pull
sd(t(df[sapply(df, is.numeric)]))

Pull data with RMySQL or RODBC, remove non numeric columns, transpose and use sd.