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使用mysql管理软件导入恢复/导出备份mysql

威海网站建设威海mysql
2415

有两种主要的方式可以使用mysql管理软件导入恢复和导出备份mysql。第一种方式是使用mysql命令行客户端工具。以下是一些常用的mysql命令：导出数据库： mysqldump -u username -p dbname > backup_file.sql 这将导出名为dbname的数据库，将数据保存在backup_file.sql文件中。要导出整个MySQL服务器中的所有数据库，请使用-h flag指定MySQL服务器。导入数据库： mysql -u username -p < backup_file.sql 这将从backup_file.sql文件中读取数据并将其导入到当前MySQL服务器中。第二种方式是使用MySQL管理软件，如phpMyAdmin等。以下是使用phpMyAdmin导入和导出MySQL数据库的流程： 1. 登录phpMyAdmin管理界面。 2. 选择要导出的数据库。 3. 点击“导出”选项卡。 4. 选择要导出的表和数据类型，并为导出文件设置适当的选项（例如文件类型、字符集、压缩等）。 5. 点击“执行”按钮，以生成导出文件。 6. 若要导入备份文件，请选择要导入的数据库。 7. 点击“导入”选项卡。 8. 点击“选择文件”按钮，选择要导入的备份文件。 9. 选择适当的选项（例如字符集、分隔符、自定义查询等）。 10. 点击“执行”按钮，以导入备份文件。

Public @ 2023-04-22 10:50:27

经典正则表达式

1. 匹配电子邮件的regex： ``` [a-zA-Z0-9-_\.]+@[a-zA-Z0-9-_\.]+\.[a-zA-Z]+ ``` 2. 匹配IP地址的regex： ``` \b((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(\.|$)){4}\b ``` 3. 匹配html标签的regex： ``` ]*>(.*?) ```

Public @ 2023-03-03 20:00:11

使用Cloudflare免费防御DDOS

威海网站建设威海DDOS
3059

据Cloudflare官方账号表示，Cloudflare在包含免费计划的所有服务计划中提供的DDoS防御服务均不计容量且不设上限。Cloudflare的全球网络现已遍及90多个国家/地区，拥有37Tbps的网络容量，并在全球200个城市部署数据中心。Cloudflare的每一个数据中心均启用了完整的DDoS缓解功能。为什么是不计容量，不设上限？根据Gartner近期发表的由Thomas Linte

Public @ 2019-03-19 16:17:16

MySQL数据库应用场景

威海Web网站开发威海mysql
2509

1. 网站数据存储： MySQL数据库是最常用的网站数据库之一，大多数网站都使用MySQL作为后端数据库来存储用户和站点的数据。 2. 电子商务应用：MySQL可以用于存储商家、产品、订单和用户等信息，这让电子商务平台的数据可靠性更高。 3. 数据分析和报告：MySQL可以处理大量数据，为数据科学家提供可靠的数据存储和分析平台。 4. 日志管理：MySQL可以通过日志管理来记录系统和应用程序

Public @ 2023-06-21 12:00:18

mysql忘记root密码与root帐号被删除处理方法

威海Web网站开发威海mysql
1883

忘记root密码或者root帐号被删除时，可以通过以下方法来重置root密码或恢复root帐号： 1. 停止MySQL服务器。 2. 启动MySQL服务器，并加上--skip-grant-tables参数，这样MySQL服务器将跳过权限验证阶段： ``` mysqld_safe --skip-grant-tables & ``` 3. 连接到MySQL服务器： ``` mysql -u

Public @ 2023-07-21 19:00:22

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[ DB ] CONNECT:[ UseTime:0.020128s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_config` [ RunTime:0.014555s ]
[ SQL ] SELECT * FROM `ob_config` [ RunTime:0.034685s ]
[ 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:0.015538s ]
[ SQL ] SELECT `id`,`name`,`addon_list` FROM `ob_hook` [ RunTime:0.013572s ]
[ 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:0.014628s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 7591 LIMIT 1 [ RunTime:0.013999s ]
[ 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:0.013914s ]
[ 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:0.014056s ]
[ 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:0.014318s ]
[ 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` = 7591 LIMIT 1 [ RunTime:0.013671s ]
[ 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=7591 [ RunTime:0.017826s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海网站建设' AND `status` <> -1 LIMIT 1 [ RunTime:0.020779s ]
[ 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` = '威海网站建设' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.045289s ]
[ 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mysql' AND `status` <> -1 LIMIT 1 [ RunTime:0.021642s ]
[ 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mysql' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.033284s ]
[ 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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