Database query to search using address

Question

I am developing a search functionality to search for dealers by their address(i.e. by postcode(zip) or by name or by city)for my project. user will be provided with only one htm

Answer 1

In MySQL you do it like this:

     "SELECT `zip`, `name`, `city` FROM `dealers` WHERE `zip` = '$zip' ORDER BY `zip` DESC"
     "SELECT `zip`, `name`, `city` FROM `dealers` WHERE `name` = '$name' ORDER BY `name`"
     "SELECT `zip`, `name`, `city` FROM `dealers` WHERE `city` = '$city' ORDER BY `city`"

I don't use Oracle but I think that it is the same. (This code assumes that zip is a varchar, if it is an integer value just remove the ' ')

Answer 2

Life would be easier if all your terms were sorted in ascending order.

I assume that your actual application is using a variable rather than a hard-coded string. So the solution should look something like this:

  select city, postcode, name
  from dealers
  where name = p_search_term OR
        postcode = p_search_term OR
        city = p_search_term
  ORDER BY case when postcode = p_search_term then p_search_term else 1 end desc
           , case when name = p_search_term then p_search_term else city end asc