摘要： Nginx基本配置 user nginx; worker_processes 5; error_log /var/log/nginx/error.log; pid /var/run/nginx.pid; events { worker_connections 1024; use epoll; } p 阅读全文

摘要： mysql 在非严格模式下使用group by SELECT * from table GROUP BY table_name; 取所有字段不会报错 mysql 在非严格模式下使用group by 如果还想取别的字段; SELECT GROUP_CONCAT(distinct source) as 阅读全文