2nd height salary mysql code example
Example 1: second height salary mysql
Both options you find max as a subset and then exclude from main select
sql> SELECT MAX( col ) FROM table
WHERE col < ( SELECT MAX( col ) FROM table);
sql> SELECT MAX(col) FROM table
WHERE col NOT IN (SELECT MAX(col) FROM table);
Example 2: sql highest salary by location
/* Highest salary by Department/Location */
SELECT e.ename, e.sal, e.deptno, d.loc
FROM emp e
JOIN dept d
ON e.deptno = d.deptno
WHERE e.sal in
(
select max(sal)
from emp
group by deptno
)