MySQL配置

zip方式安装5.7.16版本的MySQL

1. 解压：例如解压到D:\MySQL
2. 配置环境变量：系统属性-高级-环境变量，编辑PATH变量，添加D:\MySQL\mysql-5.7.16winx64\bin

3. 修改配置文件：复制D:\MySQL\mysql-5.7.16winx64目录下的my-default.ini文件为my.ini文件，

   修改#basedir = 为 basedir = D:\MySQL\mysql-5.7.16winx64
   修改#datadir = 为 datadir = D:\MySQL\mysql-5.7.16winx64\data
   在[mysqld]下增加character_set_server=utf8
   在[client]下增加port=3306
   character_set_server=utf8

4. 安装：管理员权限执行cmd，进入上述bin文件夹，输入

mysqld install MySQL --defaults-file="D:\MySQL\mysql-5.7.16winx64\my.ini"

1. 初始化：提示安装服务成功 Service successfully installed后初始化，输入

mysqld --initialize

接着启动MySQL服务

 net start mysql

6.连接数据库： 输入 mysql -uroot -p，显示Enter password:输入密码，初始密码可在D:\MySQL\mysql-5.7.16winx64\data目录下错误日志文件(后缀.err)找到
7. 修改密码：输入mysql -u root 后输入SET PASSWORD FOR ‘root’@’localhost’ = PASSWORD(‘newpass’); 可以将密码修改为newpass

修改编码

主要包括四方面：Server，DataBase，Client，Connection

1. 启动、登录、查看数据库
2. \s命令查看编码
3. 设置编码：mysql> set character_set_client=utf8;
   mysql> set character_set_connection=utf8;
   mysql> set character_set_database=utf8;
   mysql> set character_set_results=utf8;
   mysql> set character_set_server=utf8;
   mysql> set character_set_system=utf8;
   mysql> set collation_connection=utf8;
   mysql> set collation_database=utf8;
   mysql> set collation_server=utf8;

workbench

异常Cause: Java.sql.SQLException: Incorrect string value: ‘\xE5’ for column ‘_dt’ at row 1

MySQL的默认编码是Latin1，在创建数据库时，指定字符集utf-8：
create database mydb character set utf8 ;

eclipse建立connection后，打开Sample Contents报错

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘OPTION SQL_SELECT_LIMIT=26’ at line 1
错误原因：mysql版本与jdbc驱动版本不匹配，