Windows X64环境下mysql5.6.51安装指南

1)下载

mysql5.6.51介质下载地址:https://downloads.mysql.com/archives/community/

2)下载后解压到D:或E:

3)创建环境变量

4)配置参数

my.ini参数如下

For advice on how to change settings please see

http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html

*** DO NOT EDIT THIS FILE. It's a template which will be copied to the

*** default location during install, and will be replaced if you

*** upgrade to a newer version of MySQL.

mysqld

character-set-server = utf8mb4

collation-server = utf8mb4_unicode_ci

Remove leading # and set to the amount of RAM for the most important data

cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.

innodb_buffer_pool_size = 128M

Remove leading # to turn on a very important data integrity option: logging

changes to the binary log between backups.

log_bin

These are commonly set, remove the # and set as required.

basedir = E:\mysql-5.6.51-winx64
datadir = E:\mysql-5.6.51-winx64\data

port = 3306

server_id = .....

Remove leading # to set options mainly useful for reporting servers.

The server defaults are faster for transactions and fast SELECTs.

Adjust sizes as needed, experiment to find the optimal values.

join_buffer_size = 128M

sort_buffer_size = 2M

read_rnd_buffer_size = 2M

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

my-default.ini参数如下:

For advice on how to change settings please see

http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html

*** DO NOT EDIT THIS FILE. It's a template which will be copied to the

*** default location during install, and will be replaced if you

*** upgrade to a newer version of MySQL.

mysqld

Remove leading # and set to the amount of RAM for the most important data

cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.

innodb_buffer_pool_size = 128M

Remove leading # to turn on a very important data integrity option: logging

changes to the binary log between backups.

log_bin

These are commonly set, remove the # and set as required.

basedir = .....

datadir = .....

port = .....

server_id = .....

Remove leading # to set options mainly useful for reporting servers.

The server defaults are faster for transactions and fast SELECTs.

Adjust sizes as needed, experiment to find the optimal values.

join_buffer_size = 128M

sort_buffer_size = 2M

read_rnd_buffer_size = 2M

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

mysqld

character-set-server=utf8mb4

mysql

default-character-set=utf8mb4

以管理员身份运行cmd(不然权限不够),通过命令进入mysql bin 目录运行命令|:

mysqld --initialize-insecure --user=mysql

再次执行如下命令

mysql -hlocalhost -uroot -p

netstat -ano|findstr 3306

mysqld -install

到此 说明mysql 已经安装成功。

注意如发现mysql服务安装路径不对可通过指令sc delete MySQL进行删除后再安装;

启动mysql服务:命令如下

E:\mysql-5.6.51-winx64\bin>net start mysql

MySQL 服务正在启动 .

MySQL 服务已经启动成功。

5)用户登录及实际操作

mysql -u root -p第一次登录无密码。

查看数据库:show databases;

创建数据库:create database dbai;

进入数据库:use dbai;

使用查看当前数据库的表:show tables;

user表如果没有创建:create table user(username varchar(8),password varchar(8));

向表里添加数据:insert into user(username,password) values('admin','1234');

insert into user(username,password) values('user1','1111');

然后查看user表:select * from user;

创建新表格

create table bearnumsex(id varchar(6),DateTime datetime,swimgap FLOAT(5,2),innersize1 int(6),innersize2 int(6),unit varchar(50),date varchar(10),type varchar(10),repair varchar(10),imgpath varchar(50));

alter table bearnumsex convert to character set utf8mb4 collate utf8mb4_bin; 更新表格使其支持中文

6)问题处理

问题1:程序运行访问数据库提升如下:数据库打开失败 Access denied for user 'root'@localhost (using password:YES) QMYSQL:Unable to connect

处理方法:请参考:在MySQL登录时出现Access denied for user 'root'@'localhost' (using password YES) 拒绝访问问题解决_mysql显示access denied for user-CSDN博客

问题2:

QSqlDatabase: QMYSQL driver not loaded

QSqlDatabase: available drivers: QSQLITE QMYSQL QMYSQL3 QODBC QODBC3 QPSQL QPSQL7

处理方法:将mysql数据路径lib下的lib和dll放到Qt程序的可执行程序下。

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