अभ्यास

Running totals with SUM

Harbr's finance team wants to track how credit consumption accumulates over time for each warehouse. You'll build a running total using SUM() as a window function on logistics.warehouse_usage, which contains warehouse_name, usage_month, and credits_used.

निर्देश

100 XP

Select warehouse_name, usage_month, and credits_used.
Add a running_total column using SUM(credits_used) partitioned by warehouse_name and ordered by usage_month.

.css-6su6fj{-webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;}अभ्यास

निर्देश

अभ्यास