CREATE TABLE table_63975 ("Race" TEXT, "Dist  ( f ) " FLOAT, "Course" TEXT, "Runners" FLOAT, "Placing" FLOAT, "Margin" FLOAT, "Jockey" TEXT, "Trainer" TEXT)

what is the highest runners when the jockey is frankie dettori and the placing is higher than 1?
SELECT MAX("Runners") FROM table_63975 WHERE "Jockey" = 'frankie dettori' AND "Placing" > '1'
SELECT MAX("Runners") FROM "table_63975" WHERE "Jockey" = 'frankie dettori' AND "Placing" > '1'