icu stay id ของ subject id 3343 คืออะไร? ไม่จำเป็นต้องใช้ตารางทั้งหมด
what is icu stay id of subject id 3343?It is not neccessary to use all the tables.
 diagnoses:  subject_id [ text]  hadm_id [ text]  icd9_code [ text]  short_title [ text]  long_title [ text] 
SELECT prescriptions.icustay_id FROM prescriptions WHERE prescriptions.subject_id = "3343"