Updating a row in a table with new information

Hey there
I have a table and would like to update a row in it with a row from another table. Both tables have the same headers. Can this work?

I am new here and hope for a quick response!
Thanks a lot!

You can use update statement using Join:

update A.ColName=B.ColName from Table1 A, Table2 B where A.PK=B.FK and


** t1

SET **
** t1.c1 = t2.c2,

** t1.c2 = expression,**
** … **
** t1

** [INNER | LEFT] JOIN t2 ON join_predicate**
** where_predicate;

I really am a beginner. I don’t know if I did it right…but can’t I have all the information in the excel table under one header and have each information only once?
So that Tim only exists once and is registered as country USA?