数据库常见错误信息和解决方法

前几天装的论坛，一切还都正常。
突然不能见了，显示如下

Discuz! info: Can not connect to MySQL

server

Time: 2006-11-7 1:32am
Script: /bbs/index.php

Error: Can't connect to local MySQL server

through socket '/var/lib/mysql/mysql.sock'

(11)
服务器端口不对，请咨询空间商正确的端口

Similar error report has beed dispatched to

administrator before.


然后现在又突然能进了，大家认为是啥问题阿。
我的网址是
http://www.10086.co.uk/bbs/index.php

还有一个问题，有高手能告诉我，怎么能让论坛公告有颜色阿，到底是啥代码，以前知道的，不过忘记了，还有论坛最上面的那个横图片怎么改，非常感谢！！！

Discuz! info: Can not connect to MySQL server

Time: 2006-11-17 10:07am
Script: /install.php

Error: Access denied for user: '924240@localhost' (Using password: YES)
数据库帐户密码不对，请联系空间商

Similar error report has beed dispatched to administrator before.


我的这样

申请了2个空间了

都这个样子

Discuz! info: Can not connect to MySQL server

Time: 2006-11-18 3:11pm
Script: /index.php

Error: Access denied for user 'pp_175116'@'209.190.85.14' (using password: YES)
数据库帐户密码不对，请联系空间商

Similar error report has beed dispatched to administrator before.
救命啊。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。

有没有人能解决我的问题阿，今天又出现了，又上不了阿阿阿阿阿阿阿阿阿

Error: Can't connect to local MySQL server

through socket '/var/lib/mysql/mysql.sock'

(11)
服务器端口不对，请咨询空间商正确的端口

Similar error report has beed dispatched to

administrator before.

救命阿，大侠，快来帮忙

Discuz! info: MySQL Query Error

User: 新视觉
Time: 2006-12-11 11:03am
Script: /bbs/admincp.php

SQL: SELECT f.fid, f.type, f.name, f.fup, ff.viewperm, a.uid FROM cdb_forums f LEFT JOIN cdb_forumfields ff ON ff.fid=f.fid LEFT JOIN cdb_access a ON a.fid=f.fid AND a.allowview='1' WHERE f.status='1' ORDER BY f.type, f.displayorder
Error: Table 'sq_aqxsj.cdb_access' doesn't exist
数据表缺失,请恢复备份数据

Similar error report has beed dispatched to administrator before.

Discuz! info: MySQL Query Error

Time: 2006-12-11 6:46pm
Script: /viewthread.php

SQL: SELECT s.sid, s.styleid, s.groupid='6' AS ipbanned, s.pageviews AS spageviews, s.lastolupdate, s.seccode, m.uid AS discuz_uid,
m.username AS discuz_user, m.password AS discuz_pw, m.secques AS discuz_secques, m.adminid, m.groupid, m.groupexpiry,
m.extgroupids, m.email, m.timeoffset, m.tpp, m.ppp, m.posts, m.digestposts, m.oltime, m.pageviews, m.credits, m.extcredits1, m.extcredits2, m.extcredits3,
m.extcredits4, m.extcredits5, m.extcredits6, m.extcredits7, m.extcredits8, m.timeformat, m.dateformat, m.pmsound,
m.sigstatus, m.invisible, m.lastvisit, m.lastactivity, m.lastpost, m.newpm, m.accessmasks,m.xspacestatus, m.editormode, m.customshow
FROM cdb_sessions s, cdb_members m
WHERE m.uid=s.uid AND s.sid='M1JFTh' AND CONCAT_WS('.',s.ip1,s.ip2,s.ip3,s.ip4)='58.252.165.101' AND m.uid='5'
AND m.password='e0db93c4f08ab5b8d23604dd27ae925b' AND m.secques='b4e38932'
Error: Table 'xn8800.cdb_sessions' doesn't exist
数据表缺失,请恢复备份数据

Similar error report has beed dispatched to administrator before.

怎么办啊

顶一下！！新手刚来，请大家指教

Discuz! info: MySQL Query Error

Time: 2006-12-24 7:29pm
Script:

SQL: CREATE DATABASE IF NOT EXISTS DEFAULT CHARACTER SET gbk
Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DEFAULT CHARACTER SET gbk' at line 1
Errno.: 1064
怎么办?????