oracleplsqlINTERVALs.txt

-- REFERENCE WEBSITE: https://oracle-base.com/articles/misc/oracle-dates-timestamps-and-intervals#interval

--LITERAL FORMATS BEING USED WHEN WE FIRE ANY OF BELOW QUERIES ++YY DDD HH25:MI:SS.FF6

SELECT INTERVAL '40' MONTH FROM DUAL; -- MONTH
SELECT '180' YEAR FROM DUAL; --YEAR

SELECT INTERVAL '30' MINUTE FROM DUAL; --MINUTE
SELECT INTERVAL '25' SECOND FROM DUAL; --SECOND

SELECT INTERVAL '13' HOUR FROM DUAL; --HOUR
-- DEFAULT INTERVAL FORMAT IN TERMS OF TIMESTAMP 
SELECT INTERVAL '1000' YEAR(9) FROM DUAL; -- MAXIMUM PRECISION IS 9
SELECT INTERVAL '1 10' DAY TO HOUR FROM DUAL; -- DEFAULT PRECISION 2


SELECT INTERVAL '09:30' HOUR TO MINUTE FROM DUAL; --HOUR TO MINUTE 
SELECT INTERVAL '120-2' YEAR(3) TO MONTH FROM DUAL; --YEAR TO MONTH
SELECT INTERVAL '3 05:04:03.666' DAY TO SECOND FROM DUAL; (+03 05:04:03.666000)


-- IF YOU WANT TO GET DAY TO ANY INTERVAL OTHER THAN SECOND, SPECIFY THE TIMESTAMP FORMAT TILL THAT PART ALONE:
SELECT INTERVAL '3 05:04' DAY TO MINUTE FROM DUAL;
        --     DDD HH:MM
-- WILL ROUND TO 4 DECIMAL POSITIONS BUT DISPLAYS 6 DECIMAL POSITIONS IN O/P AS .758500
SELECT INTERVAL '15.75847' SECOND(2,4) FROM DUAL;