摘要:
1. 10分钟为粒度分组 SELECT concat(left(date_format(create_time, '%Y-%m-%d %H:%i'),15),'0') AS groupTime, count(*) FROM ai_t_task WHERE create_time BETWEEN '2 阅读全文
摘要:
1. 打印数据长度大于0的数据包 To print all IPv4 HTTP packets to and from port 80, i.e. print only packets that contain data, not, for example, SYN and FIN packets 阅读全文
摘要:
1. MySQL查看剩余空间 select table_name, round(data_length/1024/1024) as data_length_mb, round(data_free/1024/1024) as data_free_mb from information_schema.t 阅读全文