select","select * From info_class where time<date_sub(now(),interval 30 SECOND) order by RAND() LIMIT 1
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select","select * From info_class where time<date_sub(now(),interval 30 SECOND) order by RAND() LIMIT 1
如果文章或资源对您有帮助,欢迎打赏作者。一路走来,感谢有您!
mysql 读取大于30秒之前的信息记录
txttool.com 说一段 esp56物联 查询128 IP查询