CREATE TABLE table_name_45 (roll VARCHAR2, decile VARCHAR2, name VARCHAR2)

What is the roll number of Poroti school, which has a 6 decile?
SELECT roll FROM table_name_45 WHERE decile = "6" AND name = "poroti school"
SELECT "roll" FROM "table_name_45" WHERE "6" = "decile" AND "name" = "poroti school"