Some people represent a congressional district. The Person table tracks information on all people in a country. In which table would the foreiqn key usually be placed? Wr Are NULLs allowed in the foreign key column? Some people represent a congressional district. The Person table tracks information on all people in a country. In which table would the foreign key usually be placed? What is the name of the new foreinn kev? Some people represent a congressional district. The Person table tracks information on all people in a country. In which table would the foreign key usually be placed? What is the name of the new foreign key? Are NIII I s allowed in the foreinn kev colmn