问题描述
SELECT *
FROM dbo.Movimiento m
OUTER APPLY ( SELECT TOP 1
costo
FROM dbo.Unitario u
WHERE u.Cod = m.Cod
AND u.Fecha <= m.Fecha
ORDER BY u.Fecha DESC) u
解决方法
您可以使用相关子查询:
SELECT m.*,(SELECT TOP 1 costo
FROM dbo.Unitario as u
WHERE u.Cod = m.Cod AND
u.Fecha <= m.Fecha
ORDER BY u.Fecha DESC
) as costo
FROM dbo.Movimiento as m;