CREATE TABLE table_28003469_1 (event_date VARCHAR2, event_details VARCHAR2)

How many event dates occurred when event details were women's sabre?
SELECT COUNT(event_date) FROM table_28003469_1 WHERE event_details = "Women's Sabre"
SELECT COUNT("event_date") FROM "table_28003469_1" WHERE "Women's Sabre" = "event_details"