CREATE TABLE table_57830 ("Name" CLOB, "Years" CLOB, "Gender" CLOB, "Area" CLOB, "Authority" CLOB, "Decile" FLOAT, "Roll" FLOAT)

For the roll of 651, what was the lowest Decile?
SELECT MIN("Decile") FROM table_57830 WHERE "Roll" = '651'
SELECT MIN("Decile") FROM "table_57830" WHERE "Roll" = '651'