CREATE TABLE table_8845 ("Year" FLOAT, "Ship" CLOB, "Departed From" CLOB, "Departed On" CLOB, "Returned On" CLOB)

Which Returned On has a Year of 2011?
SELECT "Returned On" FROM table_8845 WHERE "Year" = '2011'
SELECT "Returned On" FROM "table_8845" WHERE "Year" = '2011'