questions about pandas.to_sql

Question

I have a question about how to save a dataframe to my local mysql.

import MySQLdb
import pandas as pd
conn=MySQLdb.connect(host=\"localhost\",user=\'root\',p         


        

Answer 1

Your way is not supported anymore.

con : SQLAlchemy engine or DBAPI2 connection (legacy mode)

Using SQLAlchemy makes it possible to use any DB supported by that library. If a DBAPI2 object, only sqlite3 is supported.

flavor : ‘sqlite’, default None

Deprecated since version 0.19.0: ‘sqlite’ is the only supported option if SQLAlchemy is not used.

pandas.DataFrame.to_sql

Try this?

from sqlalchemy import create_engine
import pandas as pd


engine = create_engine("mysql://root:matt123@localhost/ada")
con = engine.connect()
df = pd.DataFrame(['A','B'],columns=['new_tablecol'])
df.to_sql(name='new_table',con=con,if_exists='append')
con.close()

Syntax is:

engine = create_engine("mysql://USER:PASSWORD@HOST/DATABASE")

More information about sqlalchemy can be found here