これが例です
with given_days(d) as(
select <<start_date>> + level - 1
from dual
connect by level < = (<<end_date>> - <<start_date>>) + 1
)
select count(*)
from given_days
where to_char(d, 'DY', 'NLS_DATE_LANGUAGE=english') not in ('SUN', 'SAT')
デモンストレーション
HR\XE> with given_days as(
2 select (to_date('&&1', 'dd.mm.yyyy') + level - 1) as g_day
3 from dual
4 connect by level < = (to_date('&2', 'dd.mm.yyyy') - to_date('&&1', 'dd.mm.yyyy')) + 1
5 )
6 select count(g_day) as cnt
7 from given_days
8 where to_char(g_day, 'DY', 'NLS_DATE_LANGUAGE=english') not in ('SUN', 'SAT');
Enter value for 1: 10.10.2012
old 2: select to_date('&&1', 'dd.mm.yyyy') + level - 1
new 2: select to_date('10.10.2012', 'dd.mm.yyyy') + level - 1
Enter value for 2: 17.10.2012
old 4: connect by level < = (to_date('&2', 'dd.mm.yyyy') - to_date('&&1', 'dd.mm.yyyy')) + 1
new 4: connect by level < = (to_date('17.10.2012', 'dd.mm.yyyy') - to_date('10.10.2012', 'dd.mm.yyyy')) + 1
cnt
----------
6