当前日期和上周之间的SQL查询

Question

SELECT sge_job.j_owner AS "Owner"
      ,SUM(sge_job_usage.ju_cpu) AS "CPU Total"
FROM sge_job_usage, sge_job 
GROUP BY j_owner;

这是我当前的SQL查询,它只是简单地读取CPU%和作业所有者,但如果它在当前日期之间说14天(2周)之前我只能合并上面的总和.

在sge_job_usage表中属于:

ju_start_time, ju_end_time

任何人都可以帮助我如何检查它是否在当前日期之间 - 前14天然后检查end_time日期以确定它是否仍在进行中？

Answer that Outputs What I need below:

SELECT sge_job.j_owner AS "Owner"       
,SUM(sge_job_usage.ju_cpu) AS "CPU Total" 
FROM sge_job_usage, sge_job  
WHERE ju_start_time BETWEEN LOCALTIMESTAMP - INTERVAL '1 week' AND LOCALTIMESTAMP 
GROUP BY j_owner;

Answer 1

ADC语法对PostgreSQL无效.

我不明白您希望将哪种条件应用于ju_end_date.但它应该类似于ju_start_time上的那个.

SELECT sge_job.j_owner AS "Owner"
      ,SUM(sge_job_usage.ju_cpu) AS "CPU Total"
FROM sge_job_usage, sge_job 
WHERE sge_job_usage.C1 = sge_job.C2
  AND ju_start_time BETWEEN LOCALTIMESTAMP - INTERVAL '14 days' AND LOCALTIMESTAMP
GROUP BY j_owner;

我没有测试环境,所以我无法测试,但我认为它应该工作.

有关主题检查的更多信息

http://www.postgresql.org/docs/9.1/static/functions-datetime.html

编辑:正如所说的ypercube,你需要在两个表上加入条件.

Answer 2

我假设这两列都是这种DATE类型。那么你需要这样的东西：

WHERE ju_start_time BETWEEN CURRENT_DATE - INTERVAL '14 days'
                        AND CURRENT_DATE
  AND ju_end_time >= CURRENT_DATE

或这个（取决于您想要检查的具体条件：

WHERE ( ju_start_time, ju_end_time ) 
      OVERLAPS 
      ( CURRENT_DATE - INTERVAL '14 days', CURRENT_DATE )

但该查询使用 2 个表，并且没有连接条件。它应该是：

SELECT sge_job.j_owner AS "Owner"
      ,SUM(sge_job_usage.ju_cpu) AS "CPU Total"
FROM sge_job_usage
  JOIN sge_job
    ON sge_job.SomeColumn = sge_job_usage.SomeColumn 
WHERE   ...
GROUP BY j_owner;