C# 实体框架-LINQ的SQL命令
我无法将此SQL命令转换为LINQC# 实体框架-LINQ的SQL命令,c#,mysql,.net,entity-framework,linq,C#,Mysql,.net,Entity Framework,Linq,我无法将此SQL命令转换为LINQ SELECT tarif.*, prirazeni.Nazev FROM `tarif` INNER JOIN prirazeni ON tarif.intern_id = prirazeni.intern_id WHERE tarif.id_pojistovna = 'xx' AND cena IS NOT NULL AND prirazeni.nazev = 'yyyy' GROUP BY id_vstupni_zdroj 我的林克: var total
SELECT tarif.*, prirazeni.Nazev
FROM `tarif`
INNER JOIN prirazeni
ON tarif.intern_id = prirazeni.intern_id
WHERE tarif.id_pojistovna = 'xx' AND cena IS NOT NULL AND prirazeni.nazev = 'yyyy'
GROUP BY id_vstupni_zdroj
我的林克:
var total = (from tarif in context.Tarifs
join prirazeni in context.Prirazenis on tarif.Intern_id equals prirazeni.Intern_id into joined
from Join in joined
where tarif.Id_pojistovna == idPojistovna && Join.Nazev == nazev && tarif.Cena != null && tarif.Id_vstupni_zdroj != idVstupniZdroj
group tarif by tarif.Id_vstupni_zdroj into tarifGrouped
from grouped in tarifGrouped
select grouped
).ToList();
在MySQL上,管理员可以很好地使用SQL命令,但LINQ会返回所有行
怎么了?我想你对命令有额外的了解 试试这个
var total = (from tarif in context.Tarifs
join prirazeni in context.Prirazenis on tarif.Intern_id equals prirazeni.Intern_id
where tarif.Id_pojistovna == idPojistovna && prirazeni.Nazev == nazev && tarif.Cena != null && tarif.Id_vstupni_zdroj != idVstupniZdroj
group by tarif.Id_vstupni_zdroj
select new {tarif, prirazeni}).ToList();