CREATE TABLE table_204_77 (id NUMBER, "number" CLOB, "builder" CLOB, "type" CLOB, "date" CLOB, "works number" NUMBER, "notes" CLOB)

how many total trains were build in 1949 ?
SELECT COUNT("number") FROM table_204_77 WHERE "date" = 1949
SELECT COUNT("number") FROM "table_204_77" WHERE "date" = 1949