击球率最高的前 10 名球员

Question

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;

Answer 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;

Answer 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”