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# df1 as main df and use the feild from df2 and map it into df1
df1.merge(df2,on='columnName',how='left')
Magnificent Moth
# df1 as main df and use the feild from df2 and map it into df1
df1.merge(df2,on='columnName',how='left')pd.merge(product,customer,left_on='Product_name',right_on='Purchased_Product')pd.merge(product,customer,how='inner',left_on=['Product_ID','Seller_City'],right_on=['Product_ID','City'])In [88]: result = left.join(right, how='inner')
#https://pandas.pydata.org/docs/user_guide/merging.html