ผู้ป่วย 3267 จ่ายยาผ่านเส้นทาง ip ครั้งแรกเมื่อใด?ไม่จำเป็นต้องใช้ตารางทั้งหมด
when was patient 3267 first prescribed a medicine via the ip route?It is not neccessary to use all the tables.
 inputevents_cv:  row_id [ number]  subject_id [ number]  hadm_id [ number]  icustay_id [ number]  charttime [ time]  itemid [ number]  amount [ number] 
SELECT prescriptions.startdate FROM prescriptions WHERE prescriptions.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 3267) AND prescriptions.route = 'ip' ORDER BY prescriptions.startdate LIMIT 1