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create table cost(id varchar(100), price int, fromdate datetime); insert into cost(id, price, fromdate) values ('Item1', 5, '2019-10-10'), ('Item1', 6, '2019-10-28'), ('Item1', 7, '2019-11-01');
3 rows affected
select c.price from cost c where c.id = 'Item1' and c.fromdate = ( select max(fromdate) from cost where id = c.id and fromdate <= getdate() )
price
7
select top 1 price from cost where id = 'Item1' and fromdate <= getdate() order by fromdate desc
price
7