是否可以在滑轨中使用union all
?我正在整理一个查询,但是我需要使用union all
,有什么方法可以使其适应Rails吗?这是我的查询:
select sum(DV.Importe + DV.iva)
from venta INNER JOIN DetalleVet DV ON DV.RutaId = [venta].RutaID AND DV.IdEmpresa = [venta].IdEmpresa AND DV.Docto = [venta].Documento
where venta.Rutaid=8 and diao=611 and venta.TipoVta='Contado'
union all
select SUM(DP.Importe + DP.Iva) from pedidosliberados PL inner join detallepedidoliberado DP on PL.PEDIDO=DP.PEDIDO and PL.RUTA=DP.RUTA and PL.IDEMPRESA=DP.idempresa
where PL.cancelada=0 and PL.status=5 and PL.Tipo='Contado' and PL.Ruta=8 and PL.DiaO_entrega=611
答案 0 :(得分:1)
使查询适应Rails的最简单方法可能是使用http://localhost:8080/index
方法。看起来像这样:
Model.find_by_sql
因此翻译您的查询可能看起来像这样。
find_by_sql
或者,如果您没有模型,而只想执行原始SQL,则ActiveRecord会提供一个名为Client.find_by_sql("
SELECT Sum(DV.importe + DV.iva)
FROM venta
INNER JOIN detallevet DV
ON DV.rutaid = [venta].rutaid
AND DV.idempresa = [venta].idempresa
AND DV.docto = [venta].documento
WHERE venta.rutaid = 8
AND diao = 611
AND venta.tipovta = 'Contado'
UNION ALL
SELECT Sum(DP.importe + DP.iva)
FROM pedidosliberados PL
INNER JOIN detallepedidoliberado DP
ON PL.pedido = DP.pedido
AND PL.ruta = DP.ruta
AND PL.idempresa = DP.idempresa
WHERE PL.cancelada = 0
AND PL.status = 5
AND PL.tipo = 'Contado'
AND PL.ruta = 8
AND PL.diao_entrega = 611
")
# => [<Client id: 1, sum: 22 >, <Client id: 2, sum: 44>...]
的简洁帮助函数。
execute
参考here。