Question

我想问一下我如何总结过去7天内所有球员得分的进球。
该表的名称为 player_games ，其中包含玩游戏日期的字段为 game_played。

我尝试对分数进行求和，但分数结果为0。上个星期不包括在内。

default_socket_timeout

Answer 1

您可以使用DATE_SUB和CURDATE使用以下内容：

SELECT player_id AS playerID, SUM(scores) AS scores 
FROM player_games
WHERE game_played BETWEEN DATE_SUB(CURDATE(), INTERVAL 7 DAY) AND CURDATE()
GROUP BY player_id 
ORDER BY SUM(scores) DESC

您还可以直接在WHERE条件下使用日期计算，而无需使用DATE_SUB：

SELECT player_id AS playerID, SUM(scores) AS scores 
FROM player_games
WHERE game_played BETWEEN CURDATE() - INTERVAL 7 DAY AND CURDATE()
GROUP BY player_id 
ORDER BY SUM(scores) DESC

Answer 2

您可能正在寻找时间间隔：

SELECT SUM(goals) FROM PLAYER_GAMES WHERE GAME_PLAYED >= CURDATE() - INTERVAL 7 DAY;

编辑：

不要对字符串求和（即，不要使用引号）。

Answer 3

str(f).encode('utf-8')

Answer 4

以下应该有效 SELECT c.name, SUM(g.goals) FROM 国家为 c RIGHT JOIN 目标为 g ON c.id = g.country_id GROUP BY c.id, c.name 按 c.name ASC 排序

MySQL：如何总结球员得分的所有目标

4 个答案: