数据库错误:

错误代码:
201

错误信息:
无法连接数据库服务器! php_network_getaddresses: getaddrinfo failed: Name or service not known
数据库错误:

错误代码:
203

错误信息:
select count(cq.id) from course_question cq inner join user u on cq.uid=u.id
where 1 and cq.courseid='572' and cq.coursewareid='13205' php_network_getaddresses: getaddrinfo failed: Name or service not known
数据库错误:

错误代码:
203

错误信息:
select cq.*,u.username,u.avatar_small,u.avatar_big,u.love,c.name coursename,cw.name coursewarename from course_question cq
inner join course c on cq.courseid=c.id
inner join courseware cw on cq.coursewareid=cw.id
inner join user u on cq.uid=u.id
where 1 and cq.courseid='572' and cq.coursewareid='13205' order by cq.id desc LIMIT 0,20 php_network_getaddresses: getaddrinfo failed: Name or service not known
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