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Calculate the total character length of all tags combined for each event using REDUCE

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

Domain
SQL
Difficulty
medium

Problem

Calculate the total character length of all tags combined for each event using REDUCE. Return event_id and the total.

Practice This Problem

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

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