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SELECT IIF(g.grade >= 8, s.name, NULL), g.grade, s.marks
FROM STUDENTS s
LEFT JOIN GRADES g
ON s.marks BETWEEN g.min_mark AND g.max_mark
ORDER BY g.grade DESC, s.name;
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IF on MSSQL to avoid using CASE do,
SELECT IIF(g.grade >= 8, s.name, NULL), g.grade, s.marks FROM STUDENTS s LEFT JOIN GRADES g ON s.marks BETWEEN g.min_mark AND g.max_mark ORDER BY g.grade DESC, s.name;