如何在 linq 中重現 MySQL 語句

Question

我有這個 MySQL 查詢，它可以做我想要的。 但我不知道如何將這個查詢翻譯成 linq，UNION 的部分讓我感到困惑。

MYSQL 查詢：

SELECT * FROM conta.subrecurso as a 
left join conta.recurso as b on a.idRecurso=b.idRecurso
left join conta.eventorecurso as c on b.idRecurso=c.idRecurso
left join conta.recursocliente as d on a.idSubrecurso=d.idSubrecurso
left join conta.eventocliente as e on d.idVenta=e.idVenta
where c.idEvento=47  And  e.idVenta =784
UNION 
SELECT * FROM conta.subrecurso as a 
left join conta.recurso as b on a.idRecurso=b.idRecurso
left join conta.eventorecurso as c on b.idRecurso=c.idRecurso
left join conta.recursocliente as d on a.idSubrecurso=d.idSubrecurso 
left join conta.eventocliente as e on d.idVenta=e.idVenta
WHERE c.idEvento=47 and e.idVenta is null ;

Answer 1

有一個類似的問題。 在答案中以這種方式解決了它：

(sqlstatement1).Union(sqlstatement2);