Table: episode_details_9
Columns: no_in_series
no_in_season
title
directed_by
written_by
original_air_date
production_code

Question: How many people directed "the one with rachel's dream"?
SQL: SELECT COUNT("directed_by") FROM episode_details_9 WHERE "title" = '"The One with Rachel''s Dream"'

Question: How many episodes in the season had production code of 175255?
SQL: SELECT COUNT("no_in_season") FROM episode_details_9 WHERE "production_code" = 175255

Question: What episode number in the series is "the one with the blind dates"?
SQL: SELECT MAX("no_in_series") FROM episode_details_9 WHERE "title" = '"The One with the Blind Dates"'