ตั้งแต่ปี 2105 มีใบสั่งยา flex cont แมกนีเซียมซัลเฟต 40 มก./มล. ในปริมาณเท่าใด ไม่จำเป็นต้องใช้ตารางทั้งหมด
just how many 50 ml flex cont magnesium sulfate 40 mg/ml ij soln prescriptions were there since 2105?It is not neccessary to use all the tables.
 patient:  uniquepid [ text]  patienthealthsystemstayid [ number]  patientunitstayid [ number]  gender [ text]  age [ text]  ethnicity [ text]  hospitalid [ number]  wardid [ number]  admissionheight [ number]  admissionweight [ number]  dischargeweight [ number]  hospitaladmittime [ time]  hospitaladmitsource [ text]  unitadmittime [ time]  unitdischargetime [ time]  hospitaldischargetime [ time]  hospitaldischargestatus [ text] 
SELECT COUNT(*) FROM medication WHERE medication.drugname = '50 ml flex cont: magnesium sulfate 40 mg/ml ij soln' AND STRFTIME('%y', medication.drugstarttime) >= '2105'