human
Schema:
film (Film_ID, Title, Studio, Director, Gross_in_dollar)
market (Market_ID, Country, Number_cities)
film_market_estimation (Estimation_ID, Low_Estimate, High_Estimate, Film_ID, Type, Market_ID, Year)
Please answer with SQL.
assistant
Sure, I understand.
human
How many film market estimations are there?
assistant
SELECT COUNT( * ) FROM film_market_estimation;
human
Show me the id of films that are in one of those estimations.
assistant
SELECT distinct film_id FROM film_market_estimation ;