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多个网站可以共用一个数据库么？

是的，多个网站可以共用一个数据库。这通常是通过将多个网站部署到同一个服务器上以及在这些网站中使用相同的数据库连接信息来实现的。共享数据库可以简化网站开发和维护，并且可以提高数据的一致性和可靠性。但需要注意的是，在共享数据库时需要确保所有网站对数据库的操作不会相互干扰，并且要注意数据安全和隐私问题。

Public @ 2023-03-29 09:50:11

mysql占cpu资源，如何查看当前执行sql语句连接

威海Web网站开发威海mysql
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mysql占用资源比较大时，需要登陆查看执行的sql来分析，windows和linux语法都是一样的。mysql -uroot -p #回车输入root密码，然后再输入show full processlist;image.png数据库执行查询比较慢时，可以用此方法列出执行的sql语句，然后用explain命令来查看语句执行效率，主要看数据量和执行效率，根据实际情况确定cn

Public @ 2022-11-24 15:46:51

快云数据库数据如何导入导出？

快云数据库支持多种数据导入导出方式，具体如下： 1.使用快云控制台进行导入导出在快云控制台上创建数据库实例后，可以在实例管理页面选择“导入数据”或“导出数据”，然后选择需要导入或导出的数据库文件，即可完成操作。 2.使用云服务器进行导入导出可以通过在云服务器上安装mysql等数据库工具，使用命令行或图形界面的方式进行数据导入导出。例如，可以使用以下命令导入数据： mysql -h主机

Public @ 2023-05-30 07:00:16

快云数据库数据如何导入导出？

快云数据库的数据可以通过以下方法导入导出： 1. 导出数据 a. 使用快云数据库的“备份”功能进行导出，可以选择导出整个数据库或者某个表的数据 b. 通过SQL语句进行导出，比如使用SELECT语句查询数据后，将结果以CSV或Excel文件的格式保存到本地 2. 导入数据 a. 使用快云数据库的“恢复”功能进行导入，可以选择导入整个数据库或者某个表的数据 b. 通过SQL语句进行导入，

Public @ 2023-04-13 01:50:38

将数据库迁移至MySQL独享版数据库的操作方法

说明：迁移的前提是用户已经开通了独享版数据库，需要将共享版数据库、自建数据库、其他厂商的数据库迁移到独享版数据库。要迁移的业务分为以下三种情况：1.景安MySQL共享版—>MySQL独享版在自主管理平台点击数据迁移至快云数据库独享版1.jpg1.png选择—>景安数据库业务标识—>点击获取数据库列表—>右边方框中选择要迁移的数据库——>点击开始迁移。2.png2.自建

Public @ 2015-04-25 16:13:02

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[ DB ] CONNECT:[ UseTime:0.025479s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_config` [ RunTime:0.018184s ]
[ SQL ] SELECT * FROM `ob_config` [ RunTime:0.017132s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_config', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 25, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_hook` [ RunTime:0.017934s ]
[ SQL ] SELECT `id`,`name`,`addon_list` FROM `ob_hook` [ RunTime:0.017097s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_hook', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 3, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.018077s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 6479 LIMIT 1 [ RunTime:0.017221s ]
[ 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:0.017768s ]
[ 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:0.017790s ]
[ 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:0.018116s ]
[ 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` = 6479 LIMIT 1 [ RunTime:0.017216s ]
[ 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=6479 [ RunTime:0.017991s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海Web网站开发' AND `status` <> -1 LIMIT 1 [ RunTime:0.024463s ]
[ 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Web网站开发' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.034989s ]
[ 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` = '威海数据库' AND `status` <> -1 LIMIT 1 [ RunTime:0.024004s ]
[ 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` = '威海数据库' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.032667s ]
[ 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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