Extract Deploy Versions

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

Domain

SQL

Difficulty

medium

Seniority

L4

Problem

The release team wants to compare version strings numerically, but each deploy log records the version with a leading 'v' and dots or dashes between the parts, like 'v1.2-3'. The environment label is entered inconsistently across the table, so consider only the rows whose environment reads exactly 'staging' in lowercase. For those rows, drop the 'v' prefix and the dot and dash separators so the remaining digits run together, and return that value as an integer beside the service name.

Summary

The version number is buried in the log.

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