以下是这个问题的后续:
SQL query, IMDB data : To find an actors who did more films with Yash chopra than any other director
actors = pd.read_sql_query('''SELECT da.*
FROM (SELECT pd.pid, pd.name as Director, pa.pid, pa.name as actor, COUNT(*) as cnt,
RANK() OVER (PARTITION BY pa.pid ORDER BY COUNT(*) DESC) as seqnum,
COUNT(*) OVER (PARTITION BY pa.pid, COUNT(*)) as num_with_cnt,
FROM M_director d JOIN
Person pd
ON pd.pid = d.pid JOIN
M_cast c
ON c.MID = d.MID JOIN
Person pa
ON pa.PID = c.PID
GROUP BY pd.pid, pd.name, pa.pid, pa.name
) da
WHERE director = 'Yash Chopra' AND
seqnum = 1 AND
num_with_cnt = 1;''',conn)
这无法按预期工作并引发错误:
操作错误:靠近“FROM”:处理上述异常期间出现语法错误,另一个异常发生:14中的DatabaseError Traceback(最近一次调用last),其中director='Yash Chopra',15 seqnum=1 AND--->16 num_with_cnt=1'',conn)
我对SQL很陌生-有人能告诉我这里出了什么问题吗?
提前谢谢。