How do I search two fields (e.g., "lastName" and "maidenName") using one name
(but can be more than 1 word) so one can find a record for a woman for whom
only their maiden name is known (i.e., don't know married name). I'm guessing
it's something like:

WHERE lastName LIKE 'searchvar' OR maidenName LIKE 'searchvar'

but I'm not sure of the syntax for capturing the variable being passed from
the initial search page (via URL).