ขั้นตอนสามอันดับแรกที่พบบ่อยที่สุดในระหว่างปีนี้คืออะไร?ไม่จำเป็นต้องใช้ตารางทั้งหมด
what was the top three of the most frequent procedures during this year?It is not neccessary to use all the tables.
 cost:  row_id [ number]  subject_id [ number]  hadm_id [ number]  event_type [ text]  event_id [ number]  chargetime [ time]  cost [ number] 
SELECT d_icd_procedures.short_title FROM d_icd_procedures WHERE d_icd_procedures.icd9_code IN (SELECT t1.icd9_code FROM (SELECT procedures_icd.icd9_code, DENSE_RANK() OVER (ORDER BY COUNT(*) DESC) AS c1 FROM procedures_icd WHERE DATETIME(procedures_icd.charttime, 'start of year') = DATETIME(CURRENT_TIME(), 'start of year', '-0 year') GROUP BY procedures_icd.icd9_code) AS t1 WHERE t1.c1 <= 3)