join column in dataframe code example
Example 1: join on column pandas
# df1 as main df and use the feild from df2 and map it into df1
df1.merge(df2,on='columnName',how='left')
Example 2: 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"])