击球率最高的前 10 名球员

Posted 2023-03-24

【中文标题】击球率最高的前 10 名球员

【英文标题】：Top 10 players with the highest batting average

【发布时间】：2021-06-03 19:36:33

【问题描述】：

平均击球次数 = 总得分 / 超时次数。

在这里我们需要确保包括用完（在非前锋端）

输出如下：

Batsman_name     Average

KL Rahul            44

错误：

SQL 语句中的错误：AnalysisException: cannot resolve 'batsman_runs' given input columns: [_auto_generated_subquery_name.Batsman];第 1 行，第 21 行； '排序 ['Average DESC NULLS LAST], true

select Batsman_, sum(batsman_runs)/count(player_dismissed) as Average 
from
(
 (select batsman as Batsman_ from IPL_BALL_BY_BALL) 
 union all 
 (select non_striker as Batsman_ from IPL_BALL_BY_BALL)
)
group by Batsman_ 
order by Average desc;

【参考方案1】：

因为从您的子查询（联合结果）中，您只返回“Batsman_”列。你必须返回所有你需要的列：

select Batsman_, sum(batsman_runs)/count(player_dismissed) as Average 
from
(
 (select batsman as Batsman_,batsman_runs,player_dismissed from IPL_BALL_BY_BALL) 
 union all 
 (select non_striker as Batsman_,batsman_runs,player_dismissed from IPL_BALL_BY_BALL)
)
group by Batsman_ 
order by Average desc;

【讨论】：

我没有得到正确的平均水平，我们需要确保包括用完（在非前锋端）

你在问一个新问题，我建议你发布一个带有示例数据和所需输出的新问题

数据存在于我附加的图像中，我也提到了所需的输出。

【参考方案2】：

select Batsman_, sum(batsman_runs)/count(player_dismissed) as Average from
((select batsman as Batsman_,batsman_runs,player_dismissed from IPL_BALL_BY_BALL) union all (select non_striker as Batsman_,batsman_runs,player_dismissed
from IPL_BALL_BY_BALL))
group by Batsman_ order by Average desc;

您在内部 sql 中忘记了字段“batsman_run & player_dismissed”

【讨论】：

我认为他们的登录平均有问题不是根据非罢工端用完的你能帮我吗

可能，但这是另一个问题，所以先关闭这个，测试你想要什么，然后问一个新问题，你还有其他问题。

我试过的代码我认为它会在消除错误后给我正确的输出，但它没有给出正确的输出。我已经附上了带有示例数据的图像