Sql操作

Sql统计： 

1. 按月统计下载数： select jack.month, count(*)  as count from (select DATE_FORMAT(time,'%Y-%m') as month from download_info) jack group by month desc

Nginx配置goaccess 统计：

 nginx配置goaccess 生成可视化统计： LANG="zh_CN.UTF-8" goaccess -a -d -f /var/log/nginx/access.log  -p  /etc/goaccess/goaccess.conf  -o  /usr/local/result.html

#==================  月 '%Y-%m' ================================
#1.近一年月份故障数展示
select t.time as timer, count(1) as count from
(select DATE_FORMAT(occur_time,'%Y-%m') as time
from exception
where instrument_id = 1001 and inst_error_flag = 1 and occur_time >= '2019-03-1