Completion Rate

A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.

Domain

SQL

Difficulty

medium

Seniority

L4

Problem

Operations wants to compare how cleanly each region closes out orders. For each region, compute the percentage of orders whose status is 'Completed', skipping rows where region is NULL. Return the region and that completion percentage.

Summary

Not every region closes orders cleanly. The percentages tell the story.

Practice This Problem

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