1
我们有一组来自SQL查询的数据,我们希望使用该数据创建折线图。用定义的逻辑创建折线图
SELECT REPLACE(req2.value,"Sprint 1", "sum") AS sprint , SUM(val) AS VALUE FROM
(SELECT issue AS iss,SUM(VALUE) AS val FROM dataissue,issue WHERE FIELD LIKE 'poin%' AND dataissue.issue = issue.id AND VALUE IS NOT NULL AND issue IN (SELECT issue FROM dataissue,issue WHERE FIELD = 'sprint' AND dataissue.issue = issue.id AND VALUE IS NOT NULL) GROUP BY VALUE,issue) req1 JOIN (SELECT issue,VALUE FROM dataissue,issue WHERE FIELD LIKE 'sprint%' AND dataissue.issue = issue.id AND VALUE IS NOT NULL) req2
WHERE iss = req2.issue
UNION ALL
SELECT main2.value AS sprint , SUM(val) AS VALUE FROM
(SELECT issue AS iss,SUM(VALUE) AS val FROM dataissue,issue
WHERE FIELD LIKE 'poin%' AND dataissue.issue = issue.id AND
VALUE IS NOT NULL AND issue IN (SELECT issue FROM dataissue,issue
WHERE FIELD = 'sprint' AND dataissue.issue = issue.id AND VALUE IS NOT NULL) GROUP BY VALUE,issue)
main1 JOIN (SELECT issue,VALUE FROM dataissue,issue
WHERE FIELD LIKE 'sprint%' AND dataissue.issue = issue.id AND VALUE IS NOT NULL) main2
WHERE iss = main2.issue GROUP BY main2.value
ORDER BY CAST(SUBSTRING(sprint,LOCATE(' ',sprint)+1) AS SIGNED)
-----------------------------------
| 617,5
sprint1 | 52 | 565,5 |
Sprint 2 35 530,5
|
|
第二列是不是一个计算值(形成数据库) 第三个还 第四列的第一行是一个计算值 的逻辑是:
617,5 - 52 = 565,5
565,5 - 35 = 530,5 and so on
如何我们要用SQL来实现这个逻辑吗?