I have two dataframes with columns:
AGE NAME COUNTRY EMAIL
19 Ola usa olg@gmail.com
PHONE AGE COUNTY
+983 18 usa
How to join into one dataframe by the same columns:
AGE NAME COUNTRY EMAIL PHONE
19 Ola usa olg@gmail.com
18 usa +983
I tried to iterate all columns from one frame and compare with column from another. (loop in loop). but seems it is wrong way.