如何使用c＃将sql查询转换为linq？ [英] How to convert sql query to linq using c#?
问题描述
请朋友帮我转发下面的SQL查询到linq。
选择b.DISTRICT，b.TEHSIL，b.UID，b.BeneficiaryFullname，b .BeneficiaryRationCardID，b.Gender
来自
（
选择BeneficiaryRationCardID，min（DOB）为MaxAge
来自BPLFamilyDetails其中gender ='F'
group by BeneficiaryRationCardID
）a
内部联接BPLFamilyDetails b on a.BeneficiaryRationCardID = b.BeneficiaryRationCardID and a .MaxAge = b.DOB
内部加入
（
选择x.BeneficiaryRationCardID
来自BPLFamilyDetails x
左连接（从BPLFamilyDetails中选择BeneficiaryRationCardID，其中UID为空）y on x.BeneficiaryRationCardID = y.BeneficiaryRationCardID
其中y.BeneficiaryRationCardID为null
group by x.BeneficiaryRationCardID
）c on a.BeneficiaryRationCardID = c.BeneficiaryRationCardID
其中b.Gender ='F'
我尝试了什么：
我试过在线工具将查询从sql转换为linq但没有成功。
请帮我解决这个问题。
Please any buddy help me to convert below sql query to linq.
Select b.DISTRICT,b.TEHSIL,b.UID,b.BeneficiaryFullname,b.BeneficiaryRationCardID, b.Gender
from
(
select BeneficiaryRationCardID, min(DOB) as MaxAge
from BPLFamilyDetails where gender='F'
group by BeneficiaryRationCardID
) a
inner join BPLFamilyDetails b on a.BeneficiaryRationCardID=b.BeneficiaryRationCardID and a.MaxAge=b.DOB
inner join
(
select x.BeneficiaryRationCardID
from BPLFamilyDetails x
left join (select BeneficiaryRationCardID from BPLFamilyDetails where UID is null) y on x.BeneficiaryRationCardID=y.BeneficiaryRationCardID
where y.BeneficiaryRationCardID iS null
group by x.BeneficiaryRationCardID
) c on a.BeneficiaryRationCardID=c.BeneficiaryRationCardID
where b.Gender='F'
What I have tried:
I have tried for online tool to convert query from sql to linq but didnt succeed.
please help me to get out of this.
推荐答案
Linqer是一个SQL to LINQ转换工具。它有助于学习LINQ并将原始SQL语句转换为LINQ。 Linqer支持.NET语言 - C＃和Visual Basic。按照以下链接下载该工具：
Linqer [ ^ ]
Linqer is a SQL to LINQ converter tool. It helps to learn LINQ and convert raw SQL statements to LINQ. Linqer supports both .NET languages - C# and Visual Basic. Follow below link to download the tool:
Linqer[^]
试试这个linq 101
C＃中的101个LINQ样本 [ ^ ]
Try this linq 101
101 LINQ Samples in C#[^]
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