-_id -lesson_id -start_time -SUMDUEDURATION -COUNTDUEDURATION -INTERVAL
-105 -1 -2013-10-16 07:26:52.000 -92736 -9 -301418
-108 -1 -2013-10-18 07:03:52.000 -164282 -3 -555779
-116 -1 -2013-10-21 11:49:44.000 -1455866-7 -3533900
-128 -1 -2013-10-22 11:12:55.000 -53795 -12 -108334
-132 -1 -2013-10-30 03:27:46.000 -2036 -1 -663295276
以下是用户操作表中的记录,仅在该月的几天,是否有像MySQL这样的事件计划自动插入其他日期。
我使用它来越过日期表,但还不够好:
select _id,lesson_id,start_time, ifnull(sum,0) as SUMDUEDURATION, ifnull(COUNT,0) as COUNTDUEDURATION, ifnull(interval, 0) as INTERVAL
from dates left join (
SELECT month,_id, lesson_id, sum(duration) as sum,count(_id) as count,interval,
start_time,end_time,
max(date(" + START_TIME + ", 'weekday 0', '-7 day')) as WeekStart,
max(date(" + START_TIME + ", 'weekday 0', '-1 day')) as WeekEnd
FROM user_action where lesson_id = 1 group by month ) monthdate using(month)
where strftime('%Y%m',date) = strftime('%Y%m','now')
答案 0 :(得分:0)
您可以创建一个Service并在您需要时使用它来添加行(例如,在启动时完成,每周一次,等等)。
Here you have good tutorial,如何在Android操作系统中创建服务。
请阅读有关AlarmManager的更多信息,以便按特定时间表启动您的服务。
Calendar cal = Calendar.getInstance();
Intent intent = new Intent(this, MyService.class);
PendingIntent pintent = PendingIntent.getService(this, 0, intent, 0);
AlarmManager alarm = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
// Start every 30 seconds
alarm.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), 30*1000, pintent);
答案 1 :(得分:0)
据我所知,这只能通过时间戳来实现,而不是使用日期时间。 这是一个简短的示例,如何添加默认时间戳。
create table test (str varchar(32), ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP);
编辑:没关系,我不知怎的想你想要mysql。