这是我想要的SQL(ClearinghouseKey
是bigint
):
select *
from ConsOutput O
where O.ClearinghouseKey IN (
select distinct P.clearinghouseKey
from Project P
Inner join LandUseInProject L on L.ClearinghouseKey = P.ClearinghouseKey
where P.ProjectLocationKey IN ('L101', 'L102', 'L103')
and L.LandUseKey IN ('U000', 'U001', 'U002', 'U003')
)
内部查询是直截了当的,并在LINQPad中提供了正确的结果:
var innerQuery = (from p in Projects
join l in LandUseInProjects on p.ClearinghouseKey equals l.ClearinghouseKey
where locations.Contains(p.ProjectLocationKey)
&& (landuses.Contains(l.LandUseKey))
select new { p.ClearinghouseKey }).Distinct();
但是外部查询给出了错误:从...中输入参数包含..不能从用法中推断:
var returnQuery = from o in OperOutput
where (innerQuery).Contains(o.ClearinghouseKey)
select o;
是因为ClearinghouseKey是一个bigint?还有其他任何方式来编写此查询吗?
谢谢, 珍
答案 0 :(得分:5)
不要使用匿名类型:
select new { p.ClearinghouseKey })
应该是
select p.ClearinghouseKey)
另外考虑使用Any而不是Contains(我没有理由选择其中一个)。
where innerQuery.Any(i => i == o.ClearinghouseKey)