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.
 
    