Computer Science · Database Management Systems
एक अलग तालिका में एक संबंधित उप-विभाग (sub-department) मौजूद है या नहीं, इसके आधार पर मुख्य विभागों को फ़िल्टर करने के लिए कौन सा क्वेरी सिंटैक्स उपयुक्त है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1SELECT * FROM departments HAVING sub_dept IS NOT NULL;
- 2SELECT * FROM departments ORDER BY sub_dept;
- 3SELECT * FROM departments GROUP BY sub_dept;
- 4SELECT * FROM departments WHERE sub_dept IN (SELECT name FROM sub_depts);✓
सही उत्तर देखें
SELECT * FROM departments WHERE sub_dept IN (SELECT name FROM sub_depts);
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