Retreiving data using a sql query for a specific scenario - mysql

Question

I am having a resultset/table which is as below
user_id |date_time |name |
---------|------------------|------|
1 |05/04/2017 08:00 |Jack |
2 |05/04/2017 09:00 |Adams |
1 |05/04/2017 13:06 |Jack |
1 |05/04/2017 13:45 |Jack |
1 |06/04/2017 09:15 |Jack |
1 |07/04/2017 10:00 |Jack |
1 |10/04/2017 12:00 |Jack |
2 |10/04/2017 12:30 |Adams |
1 |10/04/2017 15:44 |Jack |
I want to sort the date_time in ascending order for each user for each day.
I am expecting the result to be as below: (I am having problem with the second row and the last but one). All rows for Jack on April 5 should be together, followed by Adams; whether the date_time of Adams is in between the date_time of Jack for that day
user_id |date_time |name |
---------|------------------|------|
1 |05/04/2017 08:00 |Jack |
1 |05/04/2017 13:06 |Jack |
1 |05/04/2017 13:45 |Jack |
2 |05/04/2017 09:00 |Adams |
1 |06/04/2017 09:15 |Jack |
1 |07/04/2017 10:00 |Jack |
1 |10/04/2017 12:00 |Jack |
1 |10/04/2017 15:44 |Jack |
2 |10/04/2017 12:30 |Adams |
Adding the query I had used to arrive at this resultset:
SELECT DISTINCT user_table.user_id
,diary_table.date_time
,user_table.NAME
FROM user_table
INNER JOIN diary_table ON user_table.user_id = diary_table.diary_user_id
AND (
date_time >= '06-Apr-2017 00:00:00'
AND date_time <= '15-Apr-2017 23:59:59'
)
AND diar_user_id IN (
SELECT DISTINCT diar_user_id
FROM diary_table
INNER JOIN event_table ON event_table.event_id = diary_table.diar_event_id
WHERE event_table.event_name = 'Lunch'
AND (
date_time >= '06-Apr-2017 00:00:00'
AND date_time <= '15-Apr-2017 23:59:59'
)
)
ORDER BY date_time ASC
,NAME
,ASC

Answer 1

Got this solved by using a day column. Here goes the query:
SELECT DISTINCT DISTINCT DATEADD(DAY, DATEDIFF(DAY, 0, date_time), 0) AS theDay
,user_table.user_id
,diary_table.date_time
,user_table.NAME
FROM user_table
INNER JOIN diary_table ON user_table.user_id = diary_table.diary_user_id
AND (
date_time >= '06-Apr-2017 00:00:00'
AND date_time <= '15-Apr-2017 23:59:59'
)
AND diar_user_id IN (
SELECT DISTINCT diar_user_id
FROM diary_table
INNER JOIN event_table ON event_table.event_id = diary_table.diar_event_id
WHERE event_table.event_name = 'Lunch'
AND (
date_time >= '06-Apr-2017 00:00:00'
AND date_time <= '15-Apr-2017 23:59:59'
)
)
ORDER BY theDay
,NAME ASC
,date_time ASC