MySql order by date asc, followed by user_id -
what query should make achieved outcome
here rows
user_id | date 3 | 2017-09-07 2 | 2017-09-08 3 | 2017-09-10
and desired output in query this
user_id | date 3 | 2017-09-07 3 | 2017-09-10 2 | 2017-09-08
but it's not based on user_id, want query rows order date asc , user_id next each other.
you can use following query:
select user_id, min(date) min_date mytable group user_id
to earliest-per-user date
value.
using above query derived table can achieve required ordering:
select t1.user_id, t1.date mytable t1 join ( select user_id, min(date) min_date mytable group user_id ) t2 on t1.user_id = t2.user_id order t2.min_date, user_id, t1.date
note: in case 2 or more users share same earliest date query gives precedence user having smallest user_id
value.
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