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之间我越来越无效使用组功能的,真的不知道是哪里的问题MySQL的:选择
预期的结果是时间戳列表从可用
请指教最大起始XXX秒内。
SELECT timestamp, response_time FROM results WHERE id = XYZ AND timestamp between (SELECT MAX(timestamp) FROM results inn WHERE id = 22) AND (SELECT timestamp FROM results WHERE id =22 AND timestamp = MAX(timestamp) - XXX) ORDER BY timestamp DESC
谢谢
'XYZ'和'22'是不同的? – Quassnoi 2010-11-11 13:31:49