CREATE TABLE table_name_68 (runners NUMBER, jockey VARCHAR2, placing VARCHAR2)

what is the highest runners when the jockey is frankie dettori and the placing is higher than 1?
SELECT MAX(runners) FROM table_name_68 WHERE jockey = "frankie dettori" AND placing > 1
SELECT MAX("runners") FROM "table_name_68" WHERE "frankie dettori" = "jockey" AND "placing" > 1