Hi, I stuck on a problem: I am
creating a registration form. I need to check if the person info has already in
database. I created a Z SQL method which I used "select usr_email from
info(table name) where usr_email = <dtml-sqlvar usr_email
type=string>" I want to call this method from my dtml method and see if
it returns "null". But I'm not sure how to implement this. In Java, it
has ResultSet which I can check if it returns null. I'm not sure how to
accomplish this in Zope. I could not find relevant document. If you know this,
could you give me a hand? Thanks!
Sa