我把excel文件读取为df，用SQL查询、分析，它不香吗？

from pandasql import sqldf,load_births,load_meat
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df1 = load_births()
df2 = load_meat()
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df1.head()
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df2.tail()
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sql = """
        select 
            date,count(*) as n
        from df1 
        group by date
        order by n desc;
      """
result = sqldf(sql)
result[result['n']==3]
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df1['date'].value_counts().head(12)

1991-12-01    3
1991-10-01    3
1991-06-01    3
1991-08-01    3
1991-09-01    3
1991-04-01    3
1991-02-01    3
1991-01-01    3
1991-03-01    3
1991-07-01    3
1991-11-01    3
1991-05-01    3
Name: date, dtype: int64
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sql2 = """
        select max(beef),min(pork),sum(turkey),count(veal)
        from df2;
    """
result2 = sqldf(sql2)
result2 
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df1.merge(df2,on='date',how = 'inner')

sql3 = """
        select df1.*,df2.* 
        from df1 inner join df2 
        on df1.date = df2.date;
        """
result3 = sqldf(sql3)

resul
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