MySql

  • 2023-05-11 15:24:09
  • Post By 高景洋
#按用户查看链接数 select USER , count(*) from information_schema.processlist group by USER; #查看每个host的链接数 SELECT substring_index(host, ':',1) AS host_name,state,count(*) FROM informati
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  • 2023-05-01 15:02:20
  • Post By 高景洋
use mysql; set sql_safe_updates=0; update user set authentication_string=password('12345678') where user='root'; flush privileges;
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  • 2023-05-01 14:58:00
  • Post By 高景洋
如何修改mysql端口号? 按以下步骤操作,即可实现端口号修改 1、登陆mysql后,执行以下命令,即可查看当前端口号 show global variables like 'port'; 2、执行 vi /etc/my.cnf 修改配置文件,增加port=13306参数 [mysqld] po
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  • 2023-03-21 10:05:47
  • Post By 高景洋
如何修改mysql 时区为东八区?并将时间设置为北京时间 1、首先查看MySQL当前的时间 > select curtime(); > show variables like “%time_zone%”; time_zone说明mysql使用system的时区,system_time_zone说明system使用CST时区
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  • 2023-01-31 09:55:03
  • Post By 高景洋
提示如下错误: Error Code: 1175. You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column To disable safe mode, toggle the option in Preferences -
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  • 2022-12-13 14:44:33
  • Post By 高景洋
3306端口已开放,已配置mysql远程链接,但是提示 “is not allowed to connect to this mysql”,要怎么处理? 操作步骤如下: 1、终端连接mysql 2、执行以下 sql : use mysql; select host from user where user='root';
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  • 2022-12-13 14:40:20
  • Post By 高景洋
1.开启端口3306 firewall-cmd --zone=public --add-port=3306/tcp --permanent 2.重启防火墙 firewall-cmd --reload 3.查看已经开放的端口 firewall-cmd --list-ports
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  • 2022-12-13 14:13:29
  • Post By 高景洋
如何在linux centos 7 下安装mysql,请看以下步骤~ 1、下载MySQL rpm包 wget https://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm 2、解压rpm包 rpm -ivh mysql57-community-re
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  • 2022-05-07 10:08:01
  • Post By 高景洋
安装mysql时,提示以下内容: The GPG keys listed for the "MySQL 5.7 Community Server" repository are already installed but they are not correct for this package. Check that the correct key URLs are con
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  • 2022-03-13 15:25:26
  • Post By 高景洋
mysql错误 IP address 'xxxx' could not be resolved: Name or service not known
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