Share of the total in SQL
SQL interview exercise on Window Functions, difficulty 2 of 3. Solve it in the editor beside a worked example; the tests run the moment you do.
Return each region's total revenue and its percentage of all revenue, rounded to 1 decimal. Columns: region, revenue, pct. Highest revenue first.
Each exercise pairs a worked example with a twin problem to solve in a real editor; the tests run the moment you do. Progress is saved in your browser, and in your account if you sign in.