ค่า pco2 ของผู้ป่วย 49295 ที่วัดที่ 2103-06-12 041500 มากกว่าค่าที่วัดที่ 2103-06-10 211400 หรือไม่ ไม่จำเป็นต้องใช้ตารางทั้งหมด
is the value of pco2 of patient 49295 measured at 2103-06-12 041500 greater than the value measured at 2103-06-10 211400?It is not neccessary to use all the tables.
 prescriptions:  row_id [ number]  subject_id [ number]  hadm_id [ number]  startdate [ time]  enddate [ time]  drug [ text]  dose_val_rx [ text]  dose_unit_rx [ text]  route [ text] 
SELECT (SELECT labevents.valuenum FROM labevents WHERE labevents.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 49295) AND labevents.itemid IN (SELECT d_labitems.itemid FROM d_labitems WHERE d_labitems.label = 'pco2') AND labevents.charttime = '2103-06-12 04:15:00') > (SELECT labevents.valuenum FROM labevents WHERE labevents.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 49295) AND labevents.itemid IN (SELECT d_labitems.itemid FROM d_labitems WHERE d_labitems.label = 'pco2') AND labevents.charttime = '2103-06-10 21:14:00')