mysql随机返回一条数据

本文主要是介绍mysql随机返回一条数据，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！

select * from biz_question ORDER BY RAND(id) LIMIT 1;

SELECT * FROM biz_question  AS t1  
JOIN (SELECT ROUND(RAND() * ((SELECT MAX(id) FROM biz_question)-(SELECT MIN(id) FROM biz_question))+(SELECT MIN(id) FROM biz_question)) AS id) AS t2 WHERE t1.id >= t2.id ORDER BY t1.id LIMIT 1

建议第二种，效率高一些

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