mysql group by get row with max value code example

Example 1: mysql select row with max value group by

SELECT t1.*
FROM employees t1
INNER JOIN (
    SELECT id, max(salary) AS salary FROM employees GROUP BY id
) t2 ON t1.id = t2.id AND t1.salary = t2.salary;

Example 2: get row from max

SELECT * 
FROM t1 WHERE (id,rev) IN 
( SELECT id, MAX(rev)
  FROM t1
  GROUP BY id
)

Example 3: mysql group by max value

-- MySql: First result only returned, so Person with max age in each Group
select * 
from (select * from mytable order by `Group`, age desc, Person) x
group by `Group`;

Example 4: mysql find the row ites of the hoghest value at on column

SELECT tt.*
FROM topten tt
INNER JOIN
    (SELECT home, MAX(datetime) AS MaxDateTime
    FROM topten
    GROUP BY home) groupedtt 
ON tt.home = groupedtt.home 
AND tt.datetime = groupedtt.MaxDateTime