[英]how to get this data using sql server query?
您可以使用遞歸 CTE:
with cte as (
select date, rate, lead(date) over (order by date) as next_date
from t
union all
select dateadd(day, 1, date), rate, next_date
from t
where date < next_date
)
select date, rate
from cte
where date <> next_date;
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