I have a table with date fields of timestamp(6) fields . create table test_time ( t1 timestamp(6) format 'mm/dd/yyyy hh:mm:si' , ); I want to insert into this table with current date and time rounded. i.e. say for example if the current date time is 08/07/2014 10:34:56 then the value in the table should be 08/07/2014 10:00:00 . (or) if current data and time is 08/07/2014 10:54:56 then also the value should be 08/07/2014 10:34:56