Annual Pipeline Failures

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

Domain

SQL

Difficulty

easy

Seniority

L3

Problem

The data engineering team is reviewing historical reliability for the 'etl_users' pipeline. Count the number of failed runs per year, excluding any runs without a recorded start time. Present results from the earliest year to the latest.

Summary

How many pipelines broke this year?

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