1、创建数据表

 //测试UTF-8格式 指定字段name的字符集为utf8   COLLATE字符集的排序方式
    sql = "CREATE TABLE IF NOT EXISTS `t_utf8` \
        (`id` INT AUTO_INCREMENT , \
        `name` VARCHAR(1024) CHARACTER SET utf8 COLLATE utf8_bin,\
        PRIMARY KEY(`id`))";

2、 指定与mysql处理的字符集

    my.Query("set names utf8");

3、插入数据

//插入数据
    {
        XDATA data;
        data["name"] = u8"测试的UTF中文";
        cout << my.Insert(data, "t_utf8") << endl;
    }

4、输出数据，

4.1、将字符集设置为GBK格式，可以直接在数据库展示；

 cout << "===============Print gbk string========================" << endl;
    //指定与mysql处理的字符集
    my.Query("set names gbk");
    my.Query("select *from t_utf8");
    my.StoreResult();
    for (;;)
    {
        auto row = my.FetchRow();
        if (row.size() == 0)
        {
            /*cout << "cedw" << endl;*/
            break;
        }
        cout << "id: " << row[0].data << "  name: " << row[1].data << endl;
    }
    my.FreeResult();

4.2、展示

 4.3、将字符集设置为utf8格式

cout << "=============Print utf8 string============" << endl;
    my.Query("set names utf8");
    my.Query("select *from t_utf8");
    my.StoreResult();
    for (;;)
    {
        auto row = my.FetchRow();
        if (row.size() == 0)
        {
            /*cout << "cedw" << endl;*/
            break;
        }
        cout << "id: " << row[0].data << "  name: " << row[1].data << endl;
    }
    my.FreeResult();

4.4、输出

发现输出是乱码，

解决方法 加UTF-8转GBK的代码，代码见上篇文章

https://blog.csdn.net/wjl990316fddwjl/article/details/135417012

 cout << "id: " << row[0].data << "  name: " << row[1].UTF8TOGBK() << endl;