Round date to 10 minutes interval

Question

I have a DATE column that I want to round to the next-lower 10 minute interval in a query (see example below).

I managed to do it by truncating the seconds

Answer 1

To return the next upper 10 minute interval, I used the following query. I hope it'll be useful because I couldn't simply do a

trunc(sysdate, 'mi') + mod(EXTRACT(minute FROM cast(sysdate as timestamp)), 10) / (24 * 60)

I did this and it worked for me.

select 
case when mod(EXTRACT(minute FROM cast(sysdate as timestamp)),5) between 1 and 4
      then trunc(sysdate,'mi')+((5*TRUNC(EXTRACT(minute FROM cast(sysdate as timestamp))/5,
0)+5)-EXTRACT(minute FROM cast(sysdate as timestamp)))/1440
      else trunc(sysdate,'mi')
end
from dual

This is based on this post.