Group by specific periods of time - group by 5 seconds

Question

I would like to group records for every 5 seconds
The following query groups for every second
select to_char(state_transition_dt, 'MM/DD HH24:MI:SS'),
UPPER(item_type) Type, UPPER(sync_operation) operation, count(*)
from sync_traffic_flow h
group by to_char(state_transition_dt, 'MM/DD HH24:MI:SS'), UPPER(item_type), UPPER(sync_operation)
order by 1
is there any way to group it for every 5 seconds??
I tried following options:
on executing the following query in timesten database I am getting error
SELECT to_char(sysdate + (10/24/60), 'HH:MI AM') FROM dual;
Error:
Inconsistent dataypes:(DATE,NUMBER) are not compatible in expression (SYSDATE _ 10/24/60) - file "ptDataType.c" ...
Also I am unable to use TRUNC function of oracle database.
Is there any way to group records by specific intervals of time??

Answer 1

Hi,
I am looking for a query where I can get rows grouped by every 5 sec
The following query fetches data for ever second but is there any way to fetch rows grouped by 5 sec
select
     to_char(state_transition_dt, 'MM/DD HH24:MI:SS'),
     UPPER(item_type) Type,
     UPPER(sync_operation) operation,
     count(*)
from
     sync_traffic_flow h
group by
     to_char(state_transition_dt, 'MM/DD HH24:MI:SS'),
     UPPER(item_type),
     UPPER(sync_operation)
order by 1
I tried another query;
instead of grouping records for 5 seconds this query is adding 5 seconds to each record and giving me same information back
any other ways to group rows for every 5 seconds?
select
to_char(state_transition_dt+ numtodsinterval(5, 'SECOND'), 'MM/DD HH24:MI:SS'),
UPPER(item_type) Type,
UPPER(sync_operation) operation,
count(*)
from
sync_traffic_flow h
group by
to_char(state_transition_dt+ numtodsinterval(5, 'SECOND'), 'MM/DD HH24:MI:SS'),
UPPER(item_type),
UPPER(sync_operation)
order by 1
Edited by: user13280764 on 01-Sep-2010 06:53