Juan Carlos Oropeza Juan Carlos Oropeza - 15 days ago 10
MySQL Question

How add time to date

I have a date range parameter, need to split into multiple date, and each will have same time as the parameter.

Not sure what is the problem with

ADDTIME
, maybe Im missing a cast? I can solve it casting to string and concat but I guess should be easier.

Current Output

selectDate time(@s_date) time(@e_date) addtime(date(a.selectDate), time(@s_date))
1 2016-09-03 08:00:00 16:00:00 08:00:00
2 2016-09-04 08:00:00 16:00:00 08:00:00


Desire Output

selectDate time(@s_date) time(@e_date) addtime(date(a.selectDate), time(@s_date))
1 2016-09-03 08:00:00 16:00:00 2016-09-03 08:00:00
2 2016-09-04 08:00:00 16:00:00 2016-09-04 08:00:00


Possible solution:

CONCAT(DATE_FORMAT(a.selectDate, '%Y-%m-%d '),
DATE_FORMAT(@s_date, '%H:%i:%s')) as start_time,


My big query

select a.selectDate,
time(@s_date),
time(@e_date),
addtime(date(a.selectDate), time(@s_date))

from (
select '1900-01-01' + INTERVAL (a.a + (10 * b.a) + (100 * c.a) + (1000 * d.a) + (10000 * e.a)) DAY as selectDate
from (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as a
cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as b
cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as c
cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as d
cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as e
) a
CROSS JOIN (SELECT @s_date := '2016-09-03 08:00:00', @e_date := '2016-09-04 16:00:00') par
WHERE selectDate BETWEEN date(@s_date)
AND date(@e_date)

Answer
select a.selectDate,
       time(@s_date),
       time(@e_date),
       addtime(concat(a.selectDate,' ','00:00:00'),time(@s_date))

from (
    select '1900-01-01' + INTERVAL (a.a + (10 * b.a) + (100 * c.a) + (1000 * d.a) + (10000 * e.a)) DAY as selectDate
    from (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as a
    cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as b
    cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as c
    cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as d
    cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as e
) a
CROSS JOIN (SELECT @s_date := '2016-09-03 08:00:00', @e_date := '2016-09-04 16:00:00') par
WHERE selectDate BETWEEN date(@s_date) 
                     AND date(@e_date)

refer this link