CREATE TABLE table_58494 ("Name" CLOB, "Years" CLOB, "Area" CLOB, "Authority" CLOB, "Decile" CLOB, "Roll" CLOB)

What is the roll number of Poroti school, which has a 6 decile?
SELECT "Roll" FROM table_58494 WHERE "Decile" = '6' AND "Name" = 'poroti school'
SELECT "Roll" FROM "table_58494" WHERE "Decile" = '6' AND "Name" = 'poroti school'