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oracle query with substracting 60 minutes from time

Posted on 2014-01-29
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Last Modified: 2014-01-29
select current_date,
       to_char(current_date,'HH24:MI') currenttime,
       schedule_start_time,
         to_char(schedule_start_time,'HH24:MI') starttime,
       schedule_end_time,
         to_char(schedule_end_time,'HH24:MI') endtime,
           case when to_char(current_date,'HH24:MI')
             between to_char(schedule_start_time,'HH24:MI') and to_char(schedule_end_time,'HH24:MI')
             then 'in between'
             else 'not in between'
           end between_times
  from drives@qdon d,sites s
 where d.location_id = s.lt_location_id
   and drive_id = 'DRV5543050'
   and drive_date = trunc(sysdate);


CURRENT_DATE,CURRENTTIME,SCHEDULE_START_TIME,STARTTIME,SCHEDULE_END_TIME,ENDTIME,BETWEEN_TIMES

1/29/2014 11:31:10 AM,11:31,1/29/2014 11:30:00 AM,11:30,1/29/2014 7:00:00 PM,19:00,in between

I want to substract 60 minutes from both

 schedule_start_time and to_char(schedule_start_time,'HH24:MI') starttime

Help is appreciated
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Question by:anumoses
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2 Comments
 
LVL 77

Accepted Solution

by:
slightwv (䄆 Netminder) earned 1000 total points
ID: 39818395
many ways to subtract 1 hour.

Try:
date_column-(60/1440)
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LVL 6

Author Closing Comment

by:anumoses
ID: 39818421
thanks that worked
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