CREATE TABLE table_44656 ("Nat." CLOB, "Name" CLOB, "Moving from" CLOB, "Type" CLOB, "Transfer window" CLOB, "Ends" CLOB)

What's the transfer window that ends in 2012?
SELECT "Transfer window" FROM table_44656 WHERE "Ends" = '2012'
SELECT "Transfer window" FROM "table_44656" WHERE "Ends" = '2012'