sql server 2008 - "neater" way of counting holidays -

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i have neat table of holidays showing date , recurrence if such holiday recurrent (i.e. new year)

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now, need count number of holidays between 2 dates. if simple list of dates without info recurrence (so i.e. show new years between 2000-01-01 , 2015-01-01) quite easy, i.e. like

declare @start_date date= '2013-01-02', @end_date date ='2014-01-02'    select  count(ce.name) holidays_count dbo.argo_cal_event ce inner join  dbo.argo_cal_event_type cet  on ce.event_type_gkey = cet.gkey (cet.name = 'exempt_day') , (ce.name <> 'sundays') , (ce.occ_start between @start_date , @end_date)

but have neat recurrence, query above won't count new years, christmases etc have been declared happening "every year starting from".

i could create table such list, i've been wondering, there other way?

edit: let me precise had in mind: i'd count event if event occurs once (i assume here user have populate irregular holidays i.e. easter), when recurrence <> once, occurrence start , count years between date , final date.

edit2: think i've got - recurrent holidays can use

select sum (datediff (year, ce.occ_start, @end_date)) recurrent_holidays dbo.argo_cal_event ce inner join  dbo.argo_cal_event_type cet  on ce.event_type_gkey = cet.gkey  (cet.name = 'exempt_day') , (ce.repeat_interval ='annually')

edit3: unfortunately solution doesn't work (or @ least getting quite complicated) if i'd count between 2 dates, in 1 taken table, i.e if i'd count recurring holidays between unit.time_in , getddate() :/

the straightforward way make them one-time occurrences.

the table isn't going that big can't add in every sunday. it's 52 or 53 entries per year.

if way can like,

select count(*) events event_date between start_date , end_date

done.

the main reason way, though, of holidays tricky calculate. you'll need calculating (or looking up) dates friday, easter monday, , others. they're based on phase of moon.

why not calculate them , make query easy?

in end, matters lot less how "neat" data structures , lot more on whether code it's supposed do, how long takes it, , how effort takes working.


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