human
Schema:
manufacturer (Manufacturer_ID, Open_Year, Name, Num_of_Factories, Num_of_Shops)
furniture (Furniture_ID, Name, Num_of_Component, Market_Rate)
furniture_manufacte (Manufacturer_ID, Furniture_ID, Price_in_Dollar)
Please answer with SQL.
assistant
Sure, I understand.
human
Show information for manufacturers that opened on or after 1990.
assistant
SELECT * FROM manufacturer WHERE open_year >= 1990;
human
How about before 1990?
assistant
SELECT * FROM manufacturer WHERE open_year < 1990 ;