CREATE TABLE table_204_131 (id NUMBER, "tops design code" CLOB, "electrical system" CLOB, "max speed" CLOB, "weight" CLOB, "brakes" CLOB, "route availability" NUMBER, "notes" CLOB)

is 08-0av heavier than 08-0lx ?
SELECT (SELECT "weight" FROM table_204_131 WHERE "tops design code" = '08-0av') > (SELECT "weight" FROM table_204_131 WHERE "tops design code" = '08-0lx')
SELECT (SELECT "weight" FROM "table_204_131" WHERE "tops design code" = '08-0av') > (SELECT "weight" FROM "table_204_131" WHERE "tops design code" = '08-0lx')