วันที่ 12/20/ปีนี้ คนไข้ 002-4486 รับประทานครั้งสุดท้ายเมื่อไร?ไม่จำเป็นต้องใช้ทุกโต๊ะ
when on 12/20/this year patient 002-4486 had an intake for the last time?It is not neccessary to use all the tables.
 allergy:  allergyid [ number]  patientunitstayid [ number]  drugname [ text]  allergyname [ text]  allergytime [ time] 
SELECT intakeoutput.intakeoutputtime FROM intakeoutput WHERE intakeoutput.patientunitstayid IN (SELECT patient.patientunitstayid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '002-4486')) AND intakeoutput.cellpath LIKE '%intake%' AND DATETIME(intakeoutput.intakeoutputtime, 'start of year') = DATETIME(CURRENT_TIME(), 'start of year', '-0 year') AND STRFTIME('%m-%d', intakeoutput.intakeoutputtime) = '12-20' ORDER BY intakeoutput.intakeoutputtime DESC LIMIT 1