Compare two columns in two tables

Question

Hi All,
I have two tables have no relations, but one have first_name, last_name and address in text fields,
table B has name , address but i need to search in the field to find the match.
EX: Table A
first_name: LLoyd
last_name: Fernanda
address: 123 cololbl av
Table B
name: peter lloyed Fernanda
address: 123 cololbl av E florida
this is like i have name and address, you get in a another table names and address not formatted well, i need to find the matches at lest 80 to 90%
Thx
Harsha

Answer 1

Unfortunately you did not mention your db version.
I think from 10g on you can use UTL_MATCH as e.g. in:
SQL>  with a as (
select 'LLoyd' first_name, 'Fernanda' last_name, '123 cololbl av' address from dual
, b as (
select 'peter lloyed Fernanda' name, '123 cololbl av E florida' address from dual
select *
  from a, b
where utl_match.jaro_winkler_similarity (
                first_name || last_name,
                name
           ) > 50
     and utl_match.jaro_winkler_similarity (
                a.address,
                b.address
           ) > 90
FIRST_NAME LAST_NAME ADDRESS        NAME                  ADDRESS_1              
LLoyd      Fernanda  123 cololbl av peter lloyed Fernanda 123 cololbl av E florida
1 row selected.