统一消息系统

// 示例代码：批量处理消息

BEGIN TRANSACTION;

INSERT INTO messages (content, user_id) VALUES ('Hello', 1);

INSERT INTO messages (content, user_id) VALUES ('Hi', 2);

COMMIT;

// 示例代码：排行榜查询

SELECT user_id, COUNT(*) AS message_count

FROM messages

GROUP BY user_id

ORDER BY message_count DESC

LIMIT 10;

数据分析平台

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SELECT user_id, COUNT(*) AS message_count

FROM messages

WHERE created_at > NOW() - INTERVAL '1 day'

GROUP BY user_id

ORDER BY message_count DESC

LIMIT 10;

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