CREATE TABLE table_25016824_2 (vote VARCHAR2, air_date VARCHAR2)

How many entries are there for vote when the air date was 15 november 1997?
SELECT COUNT(vote) FROM table_25016824_2 WHERE air_date = "15 November 1997"
SELECT COUNT("vote") FROM "table_25016824_2" WHERE "15 November 1997" = "air_date"