pandas tutorial

 https://pandas.pydata.org/docs/getting_started/intro_tutorials/06_calculate_statistics.html

# pandas read sql tutorial

https://mariadb.com/ko/resources/blog/reporting-with-pandas-and-seals-and-pythons-oh-my/

# pandas from records

https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.from_records.html

# pands read sql

https://pandas.pydata.org/docs/reference/api/pandas.read_sql.html

https://www.geeksforgeeks.org/sqlalchemy-orm-conversion-to-pandas-dataframe/

# to pandas data

https://stackoverflow.com/questions/29525808/sqlalchemy-orm-conversion-to-pandas-dataframe

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