我是新手,我有一张表来存储一些测试结果。
列可以简化为2列:
EXECUTION_ID int(6) CASE_ID int(11)
RESULT varchar(10).
“RESULT”列实际上是一个枚举,将值保存在'PASS',* 'FAIL','NORESULT' *
现在我想使用一个sql查询来获取所有执行的统计信息。
结果集格式如:
EXECUTION_ID | PASS_CNT FAIL_CNT | NORESULT_CNT
我只能找到一种方法来实现它:
select A.execId,A.a,B.a,C.a from
(select execId,result,count(result) a from STAT_RESULTS group by execId,result having result='PASS') A left join
(select execId,result,count(result) a from STAT_RESULTS group by execId,result having result='FAIL') B on A.execId=B.execId left join
(select execId,result,count(result) a from STAT_RESULTS group by execId,result having result='NORESULT') C on A.execId=C.execId;
结果列表如下:
execId pass fail noresult
55 169 77 null
56 46 9 1
57 120 13 3
58 91 45 null
59 95 44 null
60 179 9 5
有没有更好的方法来做同样的事情?
谢谢!
答案 0 :(得分:1)
怎么样?
select
s.execid EXECUTION_ID
,sum(case when s.result='PASS' then 1 else 0 end) PASS_CNT
,sum(case when s.result='FAIL' then 1 else 0 end) FAIL_CNT
,sum(case when s.result='NORESULT' then 1 else 0 end) NORESULT_CNT
from STAT_RESULTS s
group by s.execid