我有一個查詢我運行得是我,我想幾乎什麼....排序由一列匹配值
下面是運行該什麼時候我得到現在:
select users.username as spoc, iata.code as site,
completed.request as SR, truncate(count(tasks.task) *100/24/1,2) as percentage
from completed
join users on users.id = completed.name
join tasks on tasks.id = completed.task
join iata on iata.id = completed.code
group by iata.code
order by users.username;
+-------------------+----------------+
| spoc | site | SR | percentage |
+-------------------+------+------+--+
| carmen | PVD | 1110 | 58.33 |
| everton | BUD | 1114 | 120.83 |
| everton | BUS | 1112 | 110.33 |
| everton | BUS | 1112 | 110.33 |
| everton | BUS | 1113 | 110.33 |
| everton | BUS | 1112 | 110.33 |
| everton | BUS | 1112 | 110.33 |
| everton | BUD | 1114 | 120.83 |
| everton | BUD | 1115 | 120.83 |
| everton | BUD | 1115 | 45.83 |
其中一些值超過100%的原因是因爲它們在不同的SR下重複執行任務,並且在COUNT中計算它們全部。
我在查詢中查找的是COUNT任務通過獨特的SR ....這種方式他們不應該超過100%。我希望這是有道理的。
什麼是'24'所有列使用GROUP BY?您將其作爲百分比計算的一部分。 – Ibu
'count(distinct tasks.task)' – Fabricator