Update Syntax

I am trying to update my database with hidden fields that are being requested from a previous page such as:

hfSectionOneScore
hfSectionTwoScore
hfSectionThreeScore

I'm not familiar how to write an UPDATE statement, and would like some help. I'm thinking that it is something like this:

UPDATE Director_Appraisals SET

Section1Score = request("hfSectionOneScore"),
Section2Score = request("hfSectionTwoScore"),
Section3Score = request("hfSectionThreeScore"),

WHERE UserID = request("hfUserID");

Of course there are more columns, but am I on the right track? Does the syntax look correct?