How can i find out total no of sunday in the year

Question

Hi Experts,
how can i find out total no of sunday's in the particular year. please can any one help how can i do that
Regards,
Arun

Answer 1

Just for fun (and in case this wasn't done to death in the other thread), the rule posted here states:
Most years have 365 days, but a leap year has 366 days. That adds up to 52 weeks (where each week is exactly 7 days) PLUS 1 or 2 additional days. The year 2012 has exactly 366 days.Now if the year starts on a Sunday in a non-leap year, you end up with 53 Sundays. Or if either of the first two days lands on a Sunday during a leap year, then you can also get 53 Sundays.>
which allows a calculation like this:
with test_data as
     ( select rownum + 1999 as test_year from dual
       connect by rownum <= 15 )
select test_year
     , case
          when first_day = 'SUN'
          or ( first_day = 'SAT' and leap_year = 'Y' )
             then 53
          else 52
       end as sundays
from   ( select test_year
              , to_char(to_date(d.test_year||'-01-01','YYYY-MM-DD'),'DY', 'NLS_DATE_LANGUAGE=ENGLISH') first_day
              , case extract(day from last_day(to_date(d.test_year||'-02','YYYY-MM'))) when 29 then 'Y' else 'N' end as leap_year
         from   test_data d );
TEST_YEAR    SUNDAYS
      2000         53
      2001         52
      2002         52
      2003         52
      2004         52
      2005         52
      2006         53
      2007         52
      2008         52
      2009         52
      2010         52
      2011         52
      2012         53
      2013         52
      2014         52
15 rows selected.