MYSQL: select latest record only (on left join table)

Question

I have 2 tables:

Table1:

ID | Mobile Number | Name | Ordered Product| Order Date

Table2:

Answer 1

You can also try this way.

Select * from table1 a left join
(Select * from table2 where id in (select max(id) from table2 group by id) ) b on a.id=b.id

Answer 2

Try this ... I hope it may works

select a.* , b1.* 
FROM table1 a 
LEFT JOIN table2 b1
ON ( a.ID=b1.ID)  
LEFT JOIN table2 b2
ON ( a.ID=b1.ID)  AND 
(b1.Time < b2.Time OR b1.Time = b2.Time AND b1.ID < b2.ID)
WHERE b2.ID IS NULL
GROUP BY a.ID ORDER BY b1.Time DESC

Answer 3

The best way to do it is to have CreatedAt and ModifiedAt fields in every table in database. Then you just add ORDER BY CreatedAd LIMIT 1. Not sure if your Time is what I mean.

What you also have is ID. Now, if ID is AutoIncremental then job should be easy. Use ORDER BY id DESC LIMIT 1

Answer 4

You'll need some subquery's for that:

SELECT
    a.*, b.*
FROM
    table1 a
LEFT JOIN
    (SELECT c.id, d.contacted_for, c.time
     FROM
         (SELECT
            id,
            MAX(time) time
         FROM
             table2
         GROUP BY id
         ) c
     JOIN
         table2 d
         ON c.id = d.id AND d.time = c.time
     ) b
     ON a.id = b.id