ครั้งสุดท้ายที่ผู้ป่วย 65569 ได้รับการสั่งยาผ่านทาง iv ในปี 05/ปีนี้คือเมื่อใด?ไม่จำเป็นต้องใช้ตารางทั้งหมด
when was the last time patient 65569 was prescribed a drug through iv route in 05/this year?It is not neccessary to use all the tables.
 outputevents:  row_id [ number]  subject_id [ number]  hadm_id [ number]  icustay_id [ number]  charttime [ time]  itemid [ number]  value [ number] 
SELECT prescriptions.startdate FROM prescriptions WHERE prescriptions.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 65569) AND prescriptions.route = 'iv' AND DATETIME(prescriptions.startdate, 'start of year') = DATETIME(CURRENT_TIME(), 'start of year', '-0 year') AND STRFTIME('%m', prescriptions.startdate) = '05' ORDER BY prescriptions.startdate DESC LIMIT 1