Querying alertlog in rds
I'm trying to fetch alertlog from sqlplus for the last 24 hours but its fetching data only for the last 20 hours,
Oracle version i'm trying to run is 19c & 12c r1.
select to_char(originating_timestamp,'DD/MM/YYYY HH24:MI:SS')
from alertlog
WHERE originating_timestamp > systimestamp - 1 order by 1 desc
Please let me know if there is a method to appropriately fetch the last 24 hours.