Solution for Overlapping dates

Question

Hi
I am looking for an easy solution the problem described below
I have 4 records under party key and
PartyKey account id taxtype date start date end
123 145 100 01/01/2001 12/31/2002
123 145 100 05/01/2001 05/31/2001
123 145 100 01/01/2002 11/30/2002
123 145 100 01/01/2003 12/31/2007
124 111 300 01/01/2001 12/31/2006
125 222 260 04/01/2001 11/30/2001
125 222 260 01/01/2001 12/31/2001
I want to select all the records which has overlapping dates with other set of record for the same partykey and other columns and want to list all those records which has no overlapping dates.
for example for party key 123 first 3 records are overlapping date, and party key 125 has both the records has overlapping date.
party key 124 has no over lapping date and last record of partykey 123 the dates are not overlapping with first three records
Can any body help me in building the code. Its very Urgent please
Thanks
Rajesh

Answer 1

My bad, i had to head out shortly so i rushed, and introduced some copy+paste errors....This should be what you're after, hopefully you'll take the time to understand it, since you'll have to support it :)
ME_XE?select
  2     id_internal,cd_type_acct,cd_type_addr,id_acct,  dt_effect, dt_end,
  3     case when
  4        (dt_effect between lead(dt_effect) over (partition by id_internal,cd_type_acct,cd_type_addr,id_acct order by id_internal,cd_type_acct,cd_type_addr,id_acct, dt_effect asc) AND lead(dt_end) over (partition by id_internal,cd_type_acct,cd_type_addr,id_acct order by id_internal,cd_type_acct,cd_type_addr,id_acct, dt_effect asc) )
  5        OR
  6        (dt_end between lead(dt_effect) over (partition by id_internal,cd_type_acct,cd_type_addr,id_acct order by id_internal,cd_type_acct,cd_type_addr,id_acct, dt_effect asc) AND lead(dt_end) over (partition by id_internal,cd_type_acct,cd_type_addr,id_acct order by id_internal,cd_type_acct,cd_type_addr,id_acct, dt_effect asc) )
  7        OR
  8        (dt_effect between lag(dt_effect) over (partition by id_internal,cd_type_acct,cd_type_addr,id_acct order by id_internal,cd_type_acct,cd_type_addr,id_acct, dt_effect asc) AND lag(dt_end) over (partition by id_internal,cd_type_acct,cd_type_addr,id_acct order by id_internal,cd_type_acct,cd_type_addr,id_acct, dt_effect asc) )
  9        OR
10        (dt_end between lag(dt_effect) over (partition by id_internal,cd_type_acct,cd_type_addr,id_acct order by id_internal,cd_type_acct,cd_type_addr,id_acct, dt_effect asc) AND lag(dt_end) over (partition by id_internal,cd_type_acct,cd_type_addr,id_acct order by id_internal,cd_type_acct,cd_type_addr,id_acct, dt_effect asc) )
11    then
12     'Overlap'
13    else
14     'No Overlap'
15    end as overlaps
16  from
17  (
18     select *
19     from MV_ITS_PARTY_ADDRESS_EXCEP
20     order by id_internal,cd_type_acct,cd_type_addr,id_acct, dt_effect asc
21  );
       ID_INTERNAL       CD_TYPE_ACCT       CD_TYPE_ADDR ID_ACCT                              DT_EFFECT  DT_END     OVERLAPS
             93535       300000042829                 10 300                                  10/01/2000 10/31/2000 Overlap
             93535       300000042829                 10 300                                  10/01/2000 10/31/2000 Overlap
             93535       300000042829                 10 300                                  11/01/2000 12/31/2001 No Overlap
       20001115051                  0                 60 0                                    01/01/2004 12/31/2004 No Overlap
       20001115051                  0                 60 0                                    01/01/2005 12/31/2005 No Overlap
       20001115051                  0                 60 0                                    01/01/2006 02/27/2006 Overlap
       20001115051                  0                 60 0                                    01/01/2006 02/27/2006 Overlap
       20001115051                  0                 60 0                                    01/01/2006 02/27/2006 Overlap
       20001115051                  0                 60 0                                    01/01/2006 02/27/2006 Overlap
       20001115051                  0                 60 0                                    01/01/2006 02/27/2006 Overlap
       20001115051                  0                 60 0                                    02/28/2006 12/31/9999 No Overlap
11 rows selected.
Elapsed: 00:00:00.18
ME_XE?
[pre]
Message was edited by:
        Tubby