เกิดขึ้นครั้งแรกเมื่อใดในวันที่ 03/01/2103 ที่อัตราการหายใจของผู้ป่วย 31300 น้อยกว่า 19.0?ไม่จำเป็นต้องใช้ตารางทั้งหมด
when did it first happen on 03/01/2103 that the respiratory rate of patient 31300 was less than 19.0?It is not neccessary to use all the tables.
 cost:  row_id [ number]  subject_id [ number]  hadm_id [ number]  event_type [ text]  event_id [ number]  chargetime [ time]  cost [ number] 
SELECT chartevents.charttime FROM chartevents WHERE chartevents.icustay_id IN (SELECT icustays.icustay_id FROM icustays WHERE icustays.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 31300)) AND chartevents.itemid IN (SELECT d_items.itemid FROM d_items WHERE d_items.label = 'respiratory rate' AND d_items.linksto = 'chartevents') AND chartevents.valuenum < 19.0 AND STRFTIME('%y-%m-%d', chartevents.charttime) = '2103-03-01' ORDER BY chartevents.charttime LIMIT 1