【MySQL报错1042-Can'tgethostnameforyouraddress】教程文章相关的互联网学习教程文章

Navicat连接MySQL8+时出现2059报错【图】

Navicat连接MySQL8+时出现2059报错标签:查看 cal color sha roo 远程访问 native mys alt 本文系统来源:https://www.cnblogs.com/xiaokang01/p/12092702.html

php用mysql方式连接数据库出现Deprecated报错

: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in,看意思就很明了,说mysql_connect这个模块将在未来弃用,请你使用mysqli或者PDO来替代。 解决办法: 常用的php语法连接mysql如下<?php $link = mysql_connect(‘localhost‘, ‘username‘, ‘password‘); mysql_select_db(‘db_name‘, $link); //将mysql_connect()改成mysqi_connect() $link = @mys...

mysql插入数据 报错[Err] 1136 - Column count doesn&#39;t match value count at row 1(表中有自增列)【图】

版本:8.0.16 创建了一张表:create table user_table(uid int primary key auto_increment,uname varchar(10))auto_increment=1 插入数据报错: 经查找 ,有三种方式可以解决这个问题: 1.插入数据得时候,带入列名: insert into user_table("uname") values ("刘一") 2.自增键这列设置为0 insert into user_table values(0,"刘二") 3.自增键这列设置为null insert into user_table values(null,"刘三") 结果:mysql插入数据 报...

mysql报错--initialize specified but the data directory has files in it. Aborting.

初始化msyql时出现报错 C:\mysql-5.7.19-winx64> C:\mysql-5.7.19-winx64\bin\mysqld --initialize-insecure2019-12-25T01:59:21.234788Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).2019-12-25T01:59:21.237781Z 0 [ERROR] --initialize specified but the data directory has files in it. Aborting....

django配置使用mysql数据库运行报错:django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named &#39;MySQLdb&#39;【图】

今天在把django的默认数据库sqlite3切换为MySQL数据库时报错:django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named ‘MySQLdb‘ 报错原因:django虚拟环境没有安装pymysql模块 解决: 先安装pymysql:pip install pymysql 然后在项目的 init.py 文件中添加以下代码: 把django的默认数据库sqlite3切换为MySQL数据库需要修改settings里面的DATABASES配置项: 如图修改以下东西: django配...

django配置mysql报错

错误信息: django.db.utils.OperationalError: (1045, "Access denied for user ‘pyvip‘@‘localhost‘ (using password: NO)") 可能的原因: 1)数据库密码错误 2)加密方式导致的错误 解决方式 https://blog.csdn.net/q258523454/article/details/84555847 https://www.jianshu.com/p/e232d5a279d2django配置mysql报错标签:mysq article mysql details tail 密码 util 数据库密码 加密 本文系统来...

eclipse环境下的springboot框架+mybatis访问MySQL报错空指针【代码】

"/") public class TestController {@RequestMapping("/login")public String login() { List<Duorou_goods> users = new ArrayList<Duorou_goods>();UserService userService = new UserService();users = userService.selectUser();return "html/login";}}我把UserService的声明放在了方法里,原因就出在这里,UserService对象的声明应该在controller类最外层,以属性的方式声明,例如:@Controller @RequestMapping("/")...

导入SQL文件到MySQL报错 - 2006 - MySQL server has gone away【代码】

从dev环境导出了一个大小为57M的sql文件,使用Navicat导入到一半的时候,报出下面的错误:[Err] 2006 - MySQL server has gone away [Err] ... [Msg] Finished - Unsuccessfully -------------------------------------------------- 然后接着查看了MySQL的console信息: 2020-01-08T01:29:12.787613Z 9 [Note] Aborted connection 9 to db: testdbdev user: hecg host: localhost (Got a packet bigger than max_allowed_packet b...

报错: raise ImproperlyConfigured(&#39;mysqlclient 1.3.13 or newer is required; you have %s.&#39; % Database.__version__)【代码】

Django2.0同步Mysql数据库时出现的问题 执行 python manage.py makemigrations 报错# 报错位置 File "G:\python\lib\site-packages\django\db\backends\mysql\base.py", line 36, in <module> # 报错问题raise ImproperlyConfigured(‘mysqlclient 1.3.13 or newer is required; you have %s.‘ % Database.__version__) django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.13 or newer is required; you have 0.9.3 解...

MySQL多源复制报错,在线更改relay_log_info_repository,master_info_repository参数【转】【代码】【图】

(HY000): To have multiple channels, repository cannot be of type FILE; Please check the repository configuration and convert them to TABLE.原理:多源复制加入了一个叫做Channel的概念, 每一个Channel都是一个独立的Slave,都有一个IO_THREAD和SQL_THREAD。原理和普通复制一样。我们只需要对每一个Master执行Change Master 语句,只需要在每个语句最后使用For Channel来进行区分。由于复制的原理没有改变,在没有开启GTI...

mysql主从赋值,从机验证报错:ERROR 3021(HY000):this operation cannot be performed with a running salve io thread【代码】

原因: mysql从机上已经进行过绑定了,如果继续绑定需要先进行重置。 解决办法 1、停止已经启动的绑定 stop slave 2、重置绑定 reset master 3、执行复制主机命令 change master to master_host = 192.168.12.1 master_user = slave ,master_password =123456 ,master_log_file = mysql-bin.000004,master_log_pos = 881 4、发现此时已经不报错 5、启动复制 start slavemysql主从赋值,从机验证报错:ERROR 3021(HY000):this opera...

mysql Error 1130报错解决方法【图】

问题出现场景: 在windows端使用navicat链接云服务器Centos上的mysql数据库时,出现如下错误: ERROR 1130: Host 124.23.133.** is not allowed to connect to this MySQL server 通过查询得到以下三种解决办法: 1. 在腾讯云服务器控制台的安全组- ->修改规则--->添加规则-->对数据库访问端口进行配置 2. 关闭防火墙 3. 在数据库中设置访问权限 前两种操作完毕后,依然不能正常连接,然后就进行下面蛇皮操作,这下OK了。 <1>.以权...

配置MySQL主从复制报错Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server ids; these ids must be different for replication to work【代码】【图】

配置MySQL主从复制报错 Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server ids; these ids must be different for replication to work (or the --replicate-same-server-id option must be used on slave but this does not always make sense; please check the manual before using it).? 修改配置文件 sudo vim /usr/my.cnf ? 当时配置从机的时候没改id,应该主机id是...

python pip安装 mysqlclient 报错 raise EnvironmentError(&quot;%s not found&quot; % (_mysql_config_path,)) OSError: mysql_config not found【代码】

raise EnvironmentError("%s not found" % (_mysql_config_path,)) OSError: mysql_config not found 解决办法 yum install mysql-devel python pip安装 mysqlclient 报错 raise EnvironmentError("%s not found" % (_mysql_config_path,)) OSError: mysql_config not found标签:pat erro error mys not oserror dev pip pip安装 本文系统来源:https://www.cnblogs.com/angdh/p/12246056.html

登录Mysql报错

Centos登录Mysql时出现Can‘t connect to local MySQL server through socket ‘/tmp/mysql.sock‘的错误。解决方法:1.首先输入命令 find / -name mysql.sock,如果结果中有/var/lib/mysql/mysql.sock,则进行第二步2.输入命令建立一个软连接ln -s /var/lib/mysql/mysql.sock /tmp3.登录mysql登录Mysql报错标签:解决 soc lib server cti find centos sock can 本文系统来源:https://www.cnblogs.com/qianmo12...