CREATE TABLE table_60812 ("Nat." TEXT, "Name" TEXT, "Moving from" TEXT, "Type" TEXT, "Transfer window" TEXT, "Ends" FLOAT, "Transfer fee" TEXT)

What nationality is Diogo?
SELECT "Nat." FROM table_60812 WHERE "Name" = 'diogo'
SELECT "Nat." FROM "table_60812" WHERE "Name" = 'diogo'