SQL 语句:按 class 字段分组并统计数量(数量大于 1)
SELECT class, COUNT(*) AS count FROM table_name GROUP BY class HAVING count > 1;
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SELECT class, COUNT(*) AS count FROM table_name GROUP BY class HAVING count > 1;
原文地址: https://www.cveoy.top/t/topic/nn2c 著作权归作者所有。请勿转载和采集!