小编Dat*_*eau的帖子

我已经尝试过下面的代码，但它抛出一个错误：

SELECT Publisher, SUM(Global_Sales) AS total_games_sold, Year,
CASE 
WHEN Year < 1989 THEN SUM(Global_Sales)
WHEN Year BETWEEN 1990 AND 1999 THEN SUM(Global_Sales)
WHEN Year BETWEEN 2000 AND 2009 THEN SUM(Global_Sales)
ELSE Year > 2009 END AS Dates
FROM Vgsales
ORDER BY Year;