The Silent Probe

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

Domain

SQL

Difficulty

easy

Seniority

L4

Problem

A data quality sweep of these service health checks flagged the latency column, where one probe never recorded a reading and left a gap. Report every field with latency as a whole number, leaving out any record whose latency cannot be converted.

Summary

One probe never recorded. The rest still need reporting.

Practice This Problem

Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a real database and grades it automatically.