Question

我有一个查询

select count(*)
from purchases
where START_TIME>=TO_DATE('10-NOV-2017 00:00','DD-MON-YY HH24:MI') AND START_TIME<TO_DATE('10-NOV-2017 01:00','DD-MON-YY HH24:MI') and 
      CLIENT_ID in (1,54);

并且通过使用这个我收集统计数据一个小时。但在过去的7天里，我每天都需要统计数据。

我的意思是，从上面的查询中我收集的是10-NOV-2017 00:00和10-NOV-2017 01:00，同样我需要收集09-NOV-2017 00:00到09-NOV-2017 01:00等等过去7天。

它应该打印像

  Date        | Count  
+-------------+-------+
  10-NOV-2017 | 100    
  09-NOV-2017 | 110

可以实现吗？

Answer 1

我会使用像

这样的东西

with
  dates as (select trunc(sysdate) - rownum + 1 d# from dual connect by level <= 7)
select
  d.d#, 
  sum(case when p.start_time is not null then 1 else 0 end)
from
  dates d, 
  purchases p
where
  p.client_id (+) in (1, 54) and
  p.start_time (+) between d.d# and d.d# + 1/24  
group by
  d#  
order by
  d#

Answer 2

这适用于您的情况：

SELECT TRUNC (p.start_time), COUNT (*)
    FROM purchases p
   WHERE     START_TIME >= sysdate - INTERVAL '7' DAY  
         AND START_TIME <= sysdate  
          AND TO_CHAR (start_time, 'HH24:MI') IN ('00:00', '01:00')
         AND CLIENT_ID IN (1, 54)
GROUP BY p.start_time

Answer 3

这可以满足您的需求吗？

float pauseBeginTime;
float focusTime;

float totalTimeInBackground;

void OnApplicationFocus(bool hasFocus)
{
    //Detect return to game
    if (hasFocus)
    {
        Debug.Log("Focused");

        focusTime = Time.time;
        //Calculate how much waited in the background
        totalTimeInBackground = focusTime - pauseBeginTime;

        Debug.Log("Stayed in Background for " + totalTimeInBackground);
    }

    //Detect on-screen keyboard is enabled
    else
    {
        setExitTime();
    }
}


void OnApplicationPause(bool pause)
{
    //Detect Home button on Android
    if (pause)
    {
        setExitTime();
    }
}

void setExitTime()
{
    Debug.Log("Paused");
    pauseBeginTime = Time.time;
}

Answer 4

试试这个

 SELECT to_char(START_TIME,'DD-MON-YY') date,
  count(*) count
FROM
  purchases
 WHERE
  START_TIME  >=TO_DATE('10-NOV-2017 00:01','DD-MON-YY HH24:MI') -7
AND START_TIME <TO_DATE('10-NOV-2017 00:02','DD-MON-YY HH24:MI')
AND CLIENT_ID IN (1,54)
 group by to_char(START_TIME,'DD-MON-YY') ;

如何在Oracle sql developer

4 个答案: