# Use TRANSFORM to calculate the character length of each tag in the tags array

Canonical URL: <https://datadriven.io/problems/use-transform-to-calculate-the-character-length-of-each-tag-733b667d>

Domain: SQL · Difficulty: medium

## Problem

Use TRANSFORM to calculate the character length of each tag in the tags array. Return event_id and the array of lengths aliased as tag_lengths.

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