Difficult: Sort Array of Prices

Hi,
i want to sort this Array in a PL/SQL Procedure:
Price Start - Price End - Price Group
700 - 1200 - C
800 - 900 - B
1000 - 1200 B
1200 - 1300 A
1300 - 1700 C
1500 - 1600 B
Target:
700 - 800 C
800 - 900 B
900 - 1000 C
1000 - 1200 B
1200 - 1300 A
1300 - 1500 C
1500 - 1600 B
1600 - 1700 C
Can anybody help me.
Price Group A overwrite B overwright C
Message was edited by:
user645703
Message was edited by:
user645703
Message was edited by:
user645703
Message was edited by:
user645703
Message was edited by:
user645703

When i try
select price_start,price_end,
nvl(price_group,(select price_group
from (select 700 price_start,1200 price_end,'C' price_group from dual union all
select 800,900,'B' from dual union all
select 1000,1200,'B' from dual union all
select 1200,1300,'A' from dual union all
select 1300,1700,'C' from dual union all
select 1500,1600,'B' from dual
where i.price_start between price_start and price_end
and i.price_end between price_start and price_end
and i.price_group is null
) price_group
from (select the_starts,price_start,lead(price_start,1) over (order by the_starts) price_end,price_group
from (select a.the_starts,a.the_starts price_start,s.price_end,s.price_group
from (select price_start the_starts from (select 700 price_start,1200 price_end,'C' price_group from dual union all
select 800,900,'B' from dual union all
select 1000,1200,'B' from dual union all
select 1200,1300,'A' from dual union all
select 1300,1700,'C' from dual union all
select 1500,1600,'B' from dual
union
select price_end from (select 700 price_start,1200 price_end,'C' price_group from dual union all
select 800,900,'B' from dual union all
select 1000,1200,'B' from dual union all
select 1200,1300,'A' from dual union all
select 1300,1700,'C' from dual union all
select 1500,1600,'B' from dual
) a,(select 700 price_start,1200 price_end,'C' price_group from dual union all
select 800,900,'B' from dual union all
select 1000,1200,'B' from dual union all
select 1200,1300,'A' from dual union all
select 1300,1700,'C' from dual union all
select 1500,1600,'B' from dual
) s
where a.the_starts = s.price_start(+)
) i
where price_end is not null
Is it ok. But your code with subqueries work not :(

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