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SQL Project Planning

  • mayank912912
     + 0 comments

    mysql solution

    select start_date, end_date 
from 
(select start_date, row_number() over(order by start_date) as x from projects where start_date not in (select end_date from projects)) as a  join 

(select end_date, row_number() over(order by end_date) as y  from projects where end_date not in (select start_date from projects)) as b 
on a.x = b.y

order by datediff(end_date, start_date), 1