Answers for "join two dataframes based on column"

merge two dataframes based on column

df_outer = pd.merge(df1, df2, on='id', how='outer') #here id is common column

df_outer

merge two dataframes based on column

df_merge_col = pd.merge(df_row, df3, on='id')

df_merge_col

how to join two dataframe in pandas based on two column

merged_df = left_df.merge(right_df, how='inner', left_on=["A", "B"], right_on=["A2","B2"])