CREATE TABLE table_name_33 (_number_100 INT, season VARCHAR, against VARCHAR)

Which sum of # 100 has a Season of 1990, and an Against of warwickshire?
SELECT SUM(_number_100) FROM table_name_33 WHERE season = "1990" AND against = "warwickshire"
SELECT SUM("_number_100") FROM "table_name_33" WHERE "1990" = "season" AND "against" = "warwickshire"