希望你能提供帮助,这正在推动我上去
我需要计算一个问题失败的次数百分比,但这需要根据地理区域进行缩小,并且产品会针对这些问题提出质疑。
我有:
$CA002 = "( SELECT ROUND(100 * (SELECT count(CA002Result) from Data_Table where (CA002Result='Fail'))/count(CA002Result),2) from Data_Table) AS 'CA002 %'";
哪个“有效”,但只是将整个记录集计算为“整体”
我正在尝试:
$CA001 = "( SELECT ROUND(100 * (SELECT count(CA001Result) from Data_Table where (CA001Result='Fail' AND Area ='$Area'))/count(CA001Result) from Data_Table WHERE (Area='$Area'),2) AS 'CA001 %'";
另外:
$CA001 = "( SELECT ROUND(100 * (SELECT count(CA001Result ) from Data_Table where (CA001Result='Fail' AND Product='$product' AND Area='$Area'))
/ count(CA001Result WHERE Product = '$product' AND Area='$Area'),2) from Data_Table) AS 'CA001 %'";
无论我尝试什么,我只是得到错误,我似乎无法解决我需要放在哪里。
任何伟大的伟大,非常感谢。
答案 0 :(得分:1)
试试这个
//按区域过滤
create table t( id int, answer varchar(10),Area varchar(10));
insert into t select 1 , 'pass' , 'Area1';
insert into t select 2 , 'pass' , 'Area1';
insert into t select 3 , 'fail' , 'Area1';
insert into t select 4 , 'fail' , 'Area1';
insert into t select 5 , 'fail' , 'Area1';
insert into t select 6 , 'fail' , 'Area2';
SELECT
(x.TotalFailedAnswerRecord * 100) /y.TotalRecord AS Fail_percent
FROM
( SELECT Area,TotalFailedAnswerRecord = COUNT(answer)
FROM t
WHERE answer='fail' AND Area = 'Area1'
GROUP BY Area
)x
INNER JOIN
( SELECT Area,TotalRecord = COUNT(answer)
FROM t
WHERE Area = 'Area1'
GROUP BY Area
)y ON x.Area =y.Area
//Result
Fail_percent
-------------
60
//按区域,产品
过滤create table t( id int, answer varchar(10),Area varchar(10),Product varchar(10));
insert into t select 1 , 'pass' , 'Area1' ,'Product1';
insert into t select 2 , 'fail' , 'Area1' ,'Product1';
insert into t select 3 , 'fail' , 'Area1' ,'Product1';
insert into t select 4 , 'fail' , 'Area1' ,'Product1';
insert into t select 5 , 'fail' , 'Area1' ,'Product2';
insert into t select 6 , 'fail' , 'Area2' ,'Product2';
SELECT
(x.TotalFailedAnswerRecord * 100) /y.TotalRecord AS Fail_percent
FROM
( SELECT Area,Product,TotalFailedAnswerRecord = COUNT(answer)
FROM t
WHERE answer='fail' AND Area = 'Area1' AND Product = 'Product1'
GROUP BY Area,Product
)x
INNER JOIN
( SELECT Area,Product,TotalRecord = COUNT(answer)
FROM t
WHERE Area = 'Area1' AND Product = 'Product1'
GROUP BY Area,Product
)y ON x.Area =y.Area AND x.Product = y.Product
//Result
Fail_percent
-------------
75
希望这有帮助