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快云VPS支持多种环境多个数据库吗？

威海服务器/VPS 威海VPS
1811

支持，可同时安装mysql和mssql。

Public @ 2020-12-03 16:13:14

使用SQL Server 2000索引视图提高性能

威海服务器/VPS 威海SQL Server
1545

作者：Gail Erickson摘要：本文档介绍 SQL Server 2000 企业版的新功能 - 索引视图。讲解索引视图并讨论一些提高性能的具体方案。什么是索引视图？许多年来，Microsoft？ SQL Server？一直都提供创建虚拟表（称为视图）的功能。在过去，这些视图主要有两种用途：提供安全机制，将用户限制在一个或多个基表中的数据的某个子集。提供一种机制，允许开发人员定制用户如何才能

Public @ 2009-04-05 15:47:53

Linux系统云服务器查看/启用网站日志

威海服务器/VPS 威海网站日志
1931

Linux系统云服务器上查看/启用网站日志的方法如下：一、查看网站日志 1、查看 Apache 日志 Apache 日志文件默认位于 /var/log/httpd 目录，文件名称通常是 access_log 和 error_log。进入 /var/log/httpd 目录后，使用以下命令查看相关文件内容： # tail -f access_log # tail -f error_lo

Public @ 2023-02-25 17:27:23

快云VPS如何远程登录？

威海服务器/VPS 威海VPS
2551

远程登录是快云VPS使用基础。远程登录根据不同的VPS系统，有着不同的方式。快云VPS除基础型配置外，其他5种配置均支持Windows 2003、Windows 2008及CentOS 6.6。其中Windows 2003与Windows 2008同属Windows系列系统，远程登录方式相同，而CentOS 6.6属于Linux系列发行版本，需采用SSH方式远程登录，下面详细介绍一下，两类系统的远

Public @ 2021-12-05 16:13:15

快云vps怎么备份数据？

威海服务器/VPS 威海VPS
2340

1、windows系统通过在服务器中安装FTP工具将数据备份到本地；2、linux系统通过ssh远程登录后安装xftp工具进行本地和服务器数据传输。来源：景安

Public @ 2016-11-09 16:13:15

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[ DB ] CONNECT:[ UseTime:0.022526s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016362s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4751 LIMIT 1 [ RunTime:0.015424s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='cate' order by times desc limit 15 [ RunTime:0.015399s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by times desc limit 100 [ RunTime:0.015898s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by rand() limit 30 [ RunTime:0.016394s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4751 LIMIT 1 [ RunTime:0.015070s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] update `ob_article` set views=views+1 where id=4751 [ RunTime:0.016296s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海服务器/VPS' AND `status` <> -1 LIMIT 1 [ RunTime:0.022490s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海服务器/VPS' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.051260s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海VPS' AND `status` <> -1 LIMIT 1 [ RunTime:0.022388s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海VPS' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.031054s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

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