sql(5):24个小时单独统计

最新推荐文章于 2024-07-15 09:52:04 发布

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最新推荐文章于 2024-07-15 09:52:04 发布

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SELECT 0 hour UNION ALL SELECT 1 hour UNION ALL SELECT 2 hour UNION ALL SELECT 3 hour UNION ALL SELECT 4 hour UNION ALL SELECT 5 hour UNION ALL SELECT 6 hour UNION ALL SELECT 7 hour UNION ALL SELECT 8 hour UNION ALL SELECT 9 hour UNION ALL SELECT 10 hour UNION ALL SELECT 11 hour UNION ALL SELECT 12 hour
				UNION ALL SELECT 13 hour UNION ALL SELECT 14 hour UNION ALL SELECT 15 hour UNION ALL SELECT 16 hour UNION ALL SELECT 17 hour UNION ALL SELECT 18 hour UNION ALL SELECT 19 hour UNION ALL SELECT 20 hour UNION ALL SELECT 21 hour UNION ALL SELECT 22 hour UNION ALL SELECT 23 hour
											) a

和上面这个进行left join