sql - 嵌套选择 - 多部分标识符未绑定(bind)错误

Question

我编写了以下查询，但收到多部分标识符未绑定(bind)错误，因为我试图使用来自子选择外部的第一个内部联接的值来过滤子查询。

SELECT runners.id,  wins
FROM dbHorseRacing.dbo.historic_runners as runners
inner join dbHorseRacing.dbo.historic_races as races on races.race_id = runners.race_id 
inner join (
    select ru.runner_id, count(*) as wins
    FROM dbHorseRacing.dbo.historic_runners as ru
    inner join dbHorseRacing.dbo.historic_races as ra on ra.race_id = ru.race_id 
    where ru.runner_id = runners.runner_id
    and ra.meeting_date < races.meeting_date
    and ru.finish_position = 1
    group by ru.runner_id
) w on w.runner_id = runners.runner_id

以下两行导致了问题:

where ru.runner_id = runners.runner_id
        and ra.meeting_date < races.meeting_date

我尝试以其他方式编写此查询，但没有成功，我看到其他人使用嵌套选择，引用嵌套选择外部的标识符...

作为一项原则，我试图做的事情总体上是错误的吗？如果是这样，还有其他方法可以实现吗？

我已尝试寻找答案，非常感谢任何帮助!

劳拉

Answer 1

试试这个:

SELECT runners.id, (
    select count(*)
    FROM dbHorseRacing.dbo.historic_races
    where historic_races.runner_id = runners.runner_id
    and historic_races.meeting_date < races.meeting_date
    and ru.finish_position = 1
) wins
FROM dbHorseRacing.dbo.historic_runners as runners
inner join dbHorseRacing.dbo.historic_races as races on races.race_id = runners.race_id