prime_snow_9108

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The Heavy Lifters

Return user_id and username from users whose email matches a pattern ending in '@example.com'

Find usernames where NOT EXISTS any transaction at all

Find usernames where EXISTS a transaction for that user with quantity >= 5

Find server logs whose message mentions 'timeout' or 'error' using LIKE

Find products whose name contains 'Pro' or 'Max' using LIKE

Find users whose email starts with 'alice' or 'aaron' using LIKE with OR

Find users who have never had a session using a LEFT JOIN and NULL check