46
votes

I would like to select 1 if current date falls between 2 dates through Oracle SQL.

I wrote an SQL after reading through other questions.

https://stackguides.com/questions/2369222/oracle-date-between-query

https://stackguides.com/questions/2399753/select-from-table-by-knowing-only-date-without-time-oracle

But it returned only null. sysdate is the current date that is 01/05/2014 in date format DD/MM/YYYY.

The SQL I wrote is:

select 1 from dual 
WHERE to_date(sysdate,'DD/MM/YYYY') 
BETWEEN TO_DATE('28/02/2014', 'DD/MM/YYYY')
AND TO_DATE('20/06/2014', 'DD/MM/YYYY');

and

select 1 from dual 
WHERE to_date(sysdate,'DD/MM/YYYY') >= TO_DATE('28/02/2014', 'DD/MM/YYYY') 
AND to_date(sysdate,'DD/MM/YYYY') < TO_DATE('20/06/2014', 'DD/MM/YYYY'); 
3
do you need to TO_DATE() sysdate? Surely it is already a datepaul
thanks paul, According the Gordon Linoffs solution below sysdate is already a date.Avinesh Kumar
You don't need SQL for this - in PL/SQL you can just do something like if sysdate between date '2014-02-28' and date '2014-06-21' then v := 1; end if;Jeffrey Kemp
thanks Jeffrey Kemp this also works fine for me.Avinesh Kumar

3 Answers

79
votes

You don't need to apply to_date() to sysdate. It is already there:

select 1
from dual 
WHERE sysdate BETWEEN TO_DATE('28/02/2014', 'DD/MM/YYYY') AND TO_DATE('20/06/2014', 'DD/MM/YYYY');

If you are concerned about the time component on the date, then use trunc():

select 1
from dual 
WHERE trunc(sysdate) BETWEEN TO_DATE('28/02/2014', 'DD/MM/YYYY') AND
                             TO_DATE('20/06/2014', 'DD/MM/YYYY');
2
votes
SELECT to_char(emp_login_date,'DD-MON-YYYY HH24:MI:SS'),A.* 
FROM emp_log A
WHERE emp_login_date BETWEEN to_date(to_char('21-MAY-2015 11:50:14'),'DD-MON-YYYY HH24:MI:SS')
AND
to_date(to_char('22-MAY-2015 17:56:52'),'DD-MON-YYYY HH24:MI:SS') 
ORDER BY emp_login_date
0
votes

TSQL: Dates- need to look for gaps in dates between Two Date

select
distinct
e1.enddate,
e3.startdate,
DATEDIFF(DAY,e1.enddate,e3.startdate)-1 as [Datediff]
from #temp e1 
   join #temp e3 on e1.enddate < e3.startdate          
       /* Finds the next start Time */
and e3.startdate = (select min(startdate) from #temp e5
where e5.startdate > e1.enddate)
and not exists (select *  /* Eliminates e1 rows if it is overlapped */
from #temp e5 
where e5.startdate < e1.enddate and e5.enddate > e1.enddate);