CREATE TABLE table_203_192 (id DECIMAL, "year" DECIMAL, "competition" TEXT, "venue" TEXT, "position" TEXT, "notes" TEXT)

david oliver made his debut in 2006 by placing 5th in what competition ?
SELECT "competition" FROM table_203_192 WHERE "year" = 2006 AND "position" = 5
SELECT "competition" FROM "table_203_192" WHERE "position" = 5 AND "year" = 2006