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2025-01-19 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >
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# case: query the salary scale of the average salary of each department
SELECT av.*, g.`grade _ level`from (SELECT AVG (salary) ag,department_id FROM employees GROUP BY department_id) avINNER JOIN job_grades gON av.ag BETWEEN g.`lowest _ sal`AND g.`highest _ sal`
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