SELECT camera.id
FROM camera JOIN camera_features ON camera.id=camera_features.camera_id
GROUP BY camera.id
HAVING sum(camera_features.feature_id IN (1,2,3))=3
3 (1,2,3) . में सुविधाओं की संख्या है . और (camera_id,feature_id) . मानते हुए camera_features . में अद्वितीय है ।
