[英]C# subquery in LINQ select
我正在尝试将此查询转换为 LINQ,但我没有得到子查询的值
询问:
select c.cod, c.cpfcnpj, c.razaosocial, c.nome, c.fone, c.celular, c.email, c.dtcad, s.dataval as validade,
(select max(datapagamento) from vendas where c.cod = coduser) as datapag
from usuarios c, libsys s
WHERE c.cod = s.codcli
and c.cod in (select coduser from vendas)
AND c.cod in (select l.codcli from libsys l where l.dataval >= current_date)
order by c.dtcad asc
林克:
var rel = await (from u in _contexto.usuarios
from v in _contexto.libsys
where (
(u.cod == v.codcli) &&
_contexto.vendas.Any(y => y.coduser == u.cod) &&
_contexto.libsys.Any(y => y.codcli == u.cod && y.pcpdataval >= System.DateTime.Now)
)
select new RelatorioLicsModel
{
cod = u.cod,
cpfcnpj = u.cpfcnpj,
razaosocial = u.razaosocial,
nome = u.nome,
fone = u.fone,
celular = u.celular,
email = u.email,
dtcad = u.dtcad,
validade = v.pcpdataval.ToString(),
dtpag = Convert.ToDateTime(_contexto.vendas.Where(s => s.datapagamento == _contexto.vendas.Max(x => x.datapagamento) && s.coduser == u.cod).FirstOrDefault())
}).ToListAsync();
我得到的错误是:
{"您的 SQL 语法有错误;检查与您的 MySQL 服务器版本相对应的手册,以了解在 '(PARTITION BY v
. coduser
ORDER BY v
. cod
) AS row
附近使用的正确语法 \\r\\n FROM vendas
'在第 7 行"}
这是正确的方法吗? 谢谢你的帮助!
dtpag
属性有问题。
var query =
from u in _contexto.usuarios
from v in _contexto.libsys
where (
(u.cod == v.codcli) &&
_contexto.vendas.Any(y => y.coduser == u.cod) &&
_contexto.libsys.Any(y => y.codcli == u.cod && y.pcpdataval >= System.DateTime.Now)
)
select new RelatorioLicsModel
{
cod = u.cod,
cpfcnpj = u.cpfcnpj,
razaosocial = u.razaosocial,
nome = u.nome,
fone = u.fone,
celular = u.celular,
email = u.email,
dtcad = u.dtcad,
validade = v.pcpdataval.ToString(),
dtpag = Convert.ToDateTime(_contexto.vendas.Where(s => s.coduser == u.cod).Max(x => x.datapagamento))
}
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