Using an array-length function (no flattening), return event_id and the number of tags for every eve

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

Domain

SQL

Difficulty

medium

Problem

Using an array-length function (no flattening), return event_id and the number of tags for every event whose tags array has more than 3 entries. Columns: event_id, tag_count. Order by tag_count descending then event_id ascending.

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