一、基本语法connect by递归查询基本语法是:select 1 from 表格 start with ... connect by prior id = pId start with:表示以什么为根节点,不加限制可以写1=1,要以id为123的节点为根节点,就写为start with id =123connect by:connect by是必..
这个错误是新手经常会遇到的,本文主要介绍如何修复ERROR 2003 (HY000): Can't connect to MySQL server on ‘localhost' (10061)解决方案:1、登录到安装Mysql的主机,打开cmd命令行工具,执行命令mysql -uroot -p,报出下面所描述的错误;2、在开..
错误信息:ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)出现问题原因:有可能是 my.cnf 配置文件中设置了 [mysqld] 的参数 socket ,而没有设置[client]的参数socketmysql.sock 文件有什么用:m..
报错信息:ERROR 2002: Can't connect to local MySQL server through socket ‘/tmp/mysql.sock' (111)解决办法:/usr/local/mysql/bin/mysqladmin -u root > -S /var/lib/mysql/mysql.sock password 'your.passwd'或者做个软连接ln -s /var/lib/m..