Puzzle of the Week #14: Find department shares in total Salary

Puzzle of the Week #14:

For each department, find its share in the company’s total payroll. The puzzle should be solved with a single SELECT statement that does not utilize sub-queries, WITH clause, in-line views, temporary tables or PL/SQL functions

Expected Result:

DEPTNO   Share, %
------ ----------
    10      30.15
    20      37.47
    30      32.39

 

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3 thoughts on “Puzzle of the Week #14: Find department shares in total Salary

  1. sajith June 6, 2016 / 11:56 pm

    SELECT distinct
    deptno,
    round(sum(sal) OVER (partition by deptno)/sum(sal) OVER () *(100),2) result
    FROM emp
    order by deptno

    • Zahar Hilkevich June 7, 2016 / 3:07 pm

      Good. Can you do it without Analytic functions as well?

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