c# Linq left join 多个条件连接查询如下面的sql 用查询表达式怎么写?SELECT A.*,B.ITEM_NAME AS MoneyType_DESC,C.ITEM_NAME AS PayMentType_DESC,D.ITEM_NAME AS ApplyType_DESC FROM DFZFORMT055 A LEFT JOIN FM_CODE_LIST B ON A.MoneyType =

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c# Linq left join 多个条件连接查询如下面的sql 用查询表达式怎么写?SELECT A.*,B.ITEM_NAME AS MoneyType_DESC,C.ITEM_NAME AS PayMentType_DESC,D.ITEM_NAME AS ApplyType_DESC FROM DFZFORMT055 A LEFT JOIN FM_CODE_LIST B ON A.MoneyType =
c# Linq left join 多个条件连接查询
如下面的sql 用查询表达式怎么写?
SELECT A.*,B.ITEM_NAME AS MoneyType_DESC,C.ITEM_NAME AS PayMentType_DESC,D.ITEM_NAME AS ApplyType_DESC
FROM DFZFORMT055 A
LEFT JOIN FM_CODE_LIST B ON A.MoneyType = B.ITEM_VALUE AND B.FORM_KIND = 'DFZ.FORM.T055' AND B.FIELD_NAME= 'MoneyType'
LEFT JOIN FM_CODE_LIST C ON A.PayMentType = C.ITEM_VALUE AND C.FORM_KIND = 'DFZ.FORM.T055' AND C.FIELD_NAME= 'PayMentType'
LEFT JOIN FM_CODE_LIST D ON A.APPLYTYPE = D.ITEM_VALUE AND D.FORM_KIND = 'DFZ.FORM.T055' AND D.FIELD_NAME= 'ApplyType'
WHERE A.form_no=9
自己搞定了,还是要谢谢 w362435819和 fansui1983
var query = from MainTable in T055
join B in (from codelist in CODELIST where codelist.FORM_KIND=="DFZ.FORM.T055" &&codelist.ITEM_NAME=="MoneyType" select codelist)
on MainTable.MoneyType equals B.ITEM_VALUE into B_Join
from BB in B_Join.DefaultIfEmpty()
join C in (from codelist in CODELIST2 where codelist.FORM_KIND == "DFZ.FORM.T055" && codelist.ITEM_NAME == "PayMentType" select codelist)
on MainTable.PayMentType equals C.ITEM_VALUE into C_Join
from CC in C_Join.DefaultIfEmpty()
join D in .
where MainTable.FORM_NO == m_intFormNo

c# Linq left join 多个条件连接查询如下面的sql 用查询表达式怎么写?SELECT A.*,B.ITEM_NAME AS MoneyType_DESC,C.ITEM_NAME AS PayMentType_DESC,D.ITEM_NAME AS ApplyType_DESC FROM DFZFORMT055 A LEFT JOIN FM_CODE_LIST B ON A.MoneyType =
from A in DFZFORMT055 join B in FM_CODE_LIST on
A.MoneyType = B.ITEM_VALUE AND B.FORM_KIND = 'DFZ.FORM.T055' AND B.FIELD_NAME= 'MoneyType'
join C in JOIN FM_CODE_LIST on
A.PayMentType = C.ITEM_VALUE AND C.FORM_KIND = 'DFZ.FORM.T055' AND C.FIELD_NAME= 'PayMentType'
join D in FM_CODE_LIST on
A.APPLYTYPE = D.ITEM_VALUE AND D.FORM_KIND = 'DFZ.FORM.T055' AND D.FIELD_NAME= 'ApplyType'
where A.form_no=9
select A

c# Linq left join 多个条件连接查询如下面的sql 用查询表达式怎么写?SELECT A.*,B.ITEM_NAME AS MoneyType_DESC,C.ITEM_NAME AS PayMentType_DESC,D.ITEM_NAME AS ApplyType_DESC FROM DFZFORMT055 A LEFT JOIN FM_CODE_LIST B ON A.MoneyType = 怎样在LINQ实现 LEFT JOIN 或者RIGHT JOIN linq用lambda表达式 left join 自连接怎么写 left join 和 right jion 怎么表示 LINQ left join,right join 和 left out join,right out join 有什么区别吗?多了个out有什么不同? 什么是jpa不要很大一篇内容的.是不是和C#里面linq一样?举个例子什么的, 如何将linq left join 的写法转换成 limq left join lambad的写法var query = from person in people join pet in pets on person equals pet.Owner into gj from subpet in gj.DefaultIfEmpty() select new { person.FirstName,PetName = (subpet == null inner join和left join的区别 left join和inner join的区别 left outer join和left join有区别? left join 和 left outer join 有什么区别? left join 和 left outer join 的区别 left join 和 left out join 有什么区别? left join 和 left outer join 的区别 left join 和 left outer join 的区别删除怎么用left join sql语句中join ,left join ,right join有什么区别我试着吧一条sql多表查询语句join换成left ,查询的数据一下变多了很多还有,c#中类可不可以实现多个接口c# 可以定义抽象属性吗