จำนวนผู้ป่วยเอาต์พุต 021-148847 ทั้งหมดเป็นเท่าใด?ไม่จำเป็นต้องใช้ตารางทั้งหมด
what's the total amount of output patient 021-148847 had?It is not neccessary to use all the tables.
 vitalperiodic:  vitalperiodicid [ number]  patientunitstayid [ number]  temperature [ number]  sao2 [ number]  heartrate [ number]  respiration [ number]  systemicsystolic [ number]  systemicdiastolic [ number]  systemicmean [ number]  observationtime [ time] 
SELECT SUM(intakeoutput.cellvaluenumeric) FROM intakeoutput WHERE intakeoutput.patientunitstayid IN (SELECT patient.patientunitstayid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '021-148847')) AND intakeoutput.cellpath LIKE '%output%'