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What am I doing wrong? Why 'HAVING COUNT(1)>5' does not work?
Write a query to find out which managers have more than 5 people on their team. If you need to use a count, use 'COUNT(1)'.
SELECT MANAGERS.FIRST_NAME, MANAGERS.LAST_NAME FROM MANAGERS JOIN EMPLOYEES ON EMPLOYEES.MANAGER_ID = MANAGERS.ID GROUP BY MANAGERS.ID HAVING COUNT(1)>5;