Thursday, April 9, 2015

Query to get the Number of Seconds or Minutes or Hours between 2 given days

Note:- I have prepared this query since I could not find any inbuilt functions or procedures in Oracle to get this. I had the requirement to treat 2 dates are same if differences is not more then 2 seconds.

For the Seconds:-
-------------------
SELECT ('Your first Date'-'Your another Date') * DECODE( UPPER('SS')
, 'SS', 24*60*60
, 'MI', 24*60
, 'HH', 24, NULL )
FROM DUAL;

Example:-
SELECT (SYSDATE+1-SYSDATE) * DECODE( UPPER('SS')
, 'SS', 24*60*60
, 'MI', 24*60
, 'HH', 24, NULL )
FROM DUAL;

For Minutes:-
---------------
SELECT ('Your first Date'-'Your another Date') * DECODE( UPPER('MI')
, 'SS', 24*60*60
, 'MI', 24*60
, 'HH', 24, NULL )
FROM DUAL;

Example:-
SELECT (SYSDATE+1-SYSDATE) * DECODE( UPPER('MI')
, 'SS', 24*60*60
, 'MI', 24*60
, 'HH', 24, NULL )
FROM DUAL;

For the Hours:-
-----------------
SELECT ('Your first Date'-'Your another Date') * DECODE( UPPER('HH')
, 'SS', 24*60*60
, 'MI', 24*60
, 'HH', 24, NULL )
FROM DUAL;

Example:-
SELECT (SYSDATE+1-SYSDATE) * DECODE( UPPER('HH')
, 'SS', 24*60*60
, 'MI', 24*60
, 'HH', 24, NULL )

FROM DUAL;

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