sql - What would be the result of the following query? -


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the following query tried...

select d.deptid, max(tt.total) dept d, (select d.deptid, d.deptname, sum(days) total vacation v, employee e, dept d v.empid = e.empid , d.deptid = e.deptid group d.deptid, d.deptname) tt d.deptid = tt.deptid group d.deptname; --having  max(tt.total);

try using limit since inner query calculation.

select top 1 * ( select d.deptid, d.deptname, sum(days) total vacation v, employee e, dept d v.empid = e.empid , d.deptid = e.deptid group d.deptid, d.deptname) order total desc;

depends on dbms you're using.. mysql

in oracle use rownum = 1

in sql server use select top 1 *


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