Try something like this:(I did this on Oracle, it should mostly work elsewhere, the WITH clauses are mostly for just faking sample data .. so not entirely necessary)
with w_date_list as ( -- just some sample input dates - these are from your IN list (note that you want to re-org them as a "table" not an IN list - there's ways of doing that if you need help with that step select to_date('01-apr-2015','dd-mon-yyyy') cdate from dual union all select to_date('02-apr-2015','dd-mon-yyyy') cdate from dual union all select to_date('03-apr-2015','dd-mon-yyyy') cdate from dual union all select to_date('04-apr-2015','dd-mon-yyyy') cdate from dual union all select to_date('05-apr-2015','dd-mon-yyyy') cdate from dual ), w_date_rng as ( -- re-organize them into ranges using LEAD analytic function select cdate start_date, nvl(lead(cdate) over (order by cdate), cdate + 1 ) end_date -- last one, just default to 1 day from w_date_list ) select * from (select to_date('01-jan-2015 03:14:46','dd-mon-yyyy hh24:mi:ss') yourdate from dual union all select to_date('01-mar-2015 03:14:46','dd-mon-yyyy hh24:mi:ss') yourdate from dual union all select to_date('01-apr-2015 03:14:46','dd-mon-yyyy hh24:mi:ss') yourdate from dual union all select to_date('01-apr-2015 10:14:46','dd-mon-yyyy hh24:mi:ss') yourdate from dual union all select to_date('01-apr-2015 13:14:46','dd-mon-yyyy hh24:mi:ss') yourdate from dual union all select to_date('02-apr-2015 03:14:46','dd-mon-yyyy hh24:mi:ss') yourdate from dual union all select to_date('02-apr-2015 21:14:46','dd-mon-yyyy hh24:mi:ss') yourdate from dual union all select to_date('04-apr-2015 03:14:46','dd-mon-yyyy hh24:mi:ss') yourdate from dual union all select to_date('04-apr-2015 15:14:46','dd-mon-yyyy hh24:mi:ss') yourdate from dual union all select to_date('04-apr-2015 15:14:46','dd-mon-yyyy hh24:mi:ss') yourdate from dual union all select to_date('04-apr-2015 15:14:46','dd-mon-yyyy hh24:mi:ss') yourdate from dual union all select to_date('05-apr-2015 08:14:46','dd-mon-yyyy hh24:mi:ss') yourdate from dual union all select to_date('05-apr-2015 16:14:46','dd-mon-yyyy hh24:mi:ss') yourdate from dual ) table1 , -- this just some fake data for your "table1" table. w_date_rng wd where table1.yourdate between wd.start_date and wd.end_date -- join the two with range ... it'll use an index on "yourdate" if it exists /Results:
YOURDATE START_DATE END_DATE -------------------- -------------------- -------------------- 01-apr-2015 03:14:46 01-apr-2015 00:00:00 02-apr-2015 00:00:00 01-apr-2015 10:14:46 01-apr-2015 00:00:00 02-apr-2015 00:00:00 01-apr-2015 13:14:46 01-apr-2015 00:00:00 02-apr-2015 00:00:00 02-apr-2015 03:14:46 02-apr-2015 00:00:00 03-apr-2015 00:00:00 02-apr-2015 21:14:46 02-apr-2015 00:00:00 03-apr-2015 00:00:00 04-apr-2015 03:14:46 04-apr-2015 00:00:00 05-apr-2015 00:00:00 04-apr-2015 15:14:46 04-apr-2015 00:00:00 05-apr-2015 00:00:00 04-apr-2015 15:14:46 04-apr-2015 00:00:00 05-apr-2015 00:00:00 04-apr-2015 15:14:46 04-apr-2015 00:00:00 05-apr-2015 00:00:00 05-apr-2015 08:14:46 05-apr-2015 00:00:00 06-apr-2015 00:00:00 05-apr-2015 16:14:46 05-apr-2015 00:00:00 06-apr-2015 00:00:00 11 rows selected.This could be "generalized" as:
select * from table1 , ( select cdate start_date, nvl(lead(cdate) over (order by cdate), cdate + 1 ) end_date from ( select to_date('01-apr-2015','dd-mon-yyyy') cdate from dual union all select to_date('02-apr-2015','dd-mon-yyyy') cdate from dual union all select to_date('03-apr-2015','dd-mon-yyyy') cdate from dual union all select to_date('04-apr-2015','dd-mon-yyyy') cdate from dual union all select to_date('05-apr-2015','dd-mon-yyyy') cdate from dual ) w_date_list ) wdwhere table1.yourdate between wd.start_date and wd.end_date /That should work on any DB ... MYSQL, Oracle, whatever.
just need to input the date list range - it would be best to feed it in as another table or such ...
I could show how to do it Oracle but probably not terribly useful to you :) Might need another question for that if needed.