Page Comparison

update h
set end_date=cast(getdate() as date)
from PRESENTATION_STOCK_HISTORY h
where ( (isnull(PRESENTATION_1, -1) != isnull((select PRESENTATION_1 from RPM_PRESENTATION s where s.sku_id=h.sku_id and s.store_id=h.store_id), -1))
or (not exists (select 1 from RPM_PRESENTATION s where s.sku_id=h.sku_id and s.store_id=h.store_id)) )
      and end_date is null;

insert into PRESENTATION_STOCK_HISTORY (sku_id, store_id, PRESENTATION_1, start_date)
select sku_id, store_id, PRESENTATION_1, cast(getdate() as date)
from RPM_PRESENTATION s
where not exists (select 1 from PRESENTATION_STOCK_HISTORY h where h.sku_id=s.sku_id and h.store_id=s.store_id and h.end_date is null);

update sku_range
set end_date=getdate(), updated=getdate()
where end_date is null 
  and not exists (select 1 from sku_range_current c where sku_range.sku_id=c.sku_id and sku_range.store_id=c.store_id)
  and exists (select 1 from sku_range_current);

insert into sku_range (sku_id, store_id, start_date, updated)
select sku_id, store_id, getdate(), getdate()
from sku_range_current c
where not exists (select 1 from sku_range r where r.sku_id=c.sku_id and r.store_id=c.store_id and r.end_date is null);