CREATE TABLE table_name_66 (body_width_mm INT, part_number VARCHAR, body_length_mm VARCHAR)

How much Body Width/mm has a Part Number of tsop40/44, and a Body Length/mm smaller than 18.42?
SELECT SUM(body_width_mm) FROM table_name_66 WHERE part_number = "tsop40/44" AND body_length_mm < 18.42
SELECT SUM("body_width_mm") FROM "table_name_66" WHERE "body_length_mm" < 18.42 AND "part_number" = "tsop40/44"