<?xml version="1.0" encoding="utf-8" ?>
<configuration><connectionStrings><add name ="default" connectionString ="server=192.168.XX.XX;User Id=root;password=XXXX;database=test" providerName="PWMIS.DataProvider.Data.MySQL,PWMIS.MySqlClient"/></connectionStrings>
</configuration>

/** PDF.NET 数据开发框架* http://www.pwmis.com/sqlmap*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using PWMIS.DataMap.Entity;namespace TestMySqlEntity
{class User:EntityBase {public User(){TableName = "tb_user";PrimaryKeys.Add("ID");//主键IdentityName = "ID";//标识，自增PropertyNames = new string[] {"ID","Name","Age" };PropertyValues = new object[PropertyNames.Length];}public int ID{get { return getProperty<int>("ID"); }set { setProperty("ID", value); }}public int Age{get { return getProperty<int>("Age"); }set { setProperty("Age", value); }}public string Name{get { return getProperty<string>("Name"); }set { setProperty("Name", value,50); }}}
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using PWMIS.DataMap.Entity;

namespace TestMySqlEntity
{
    class Program
    {
        static void Main(string[] args)
        {
            User u = new User();

//*************构建 OQL 查询表达式 ******* begin ************
            //查询实体集合
            //使用 OQLCompare 对象作为条件
            //OQL q = OQL.From(u).Select().Where(new OQLCompare(u).Comparer(u.Age, OQLCompare.CompareType.NoSmaller, 15)).END ;

OQL q = new OQL(u);
            //使用OQL2 作为条件对象
            q.Select().Where(q.Condition.AND(u.Age, ">=", 15)).OrderBy (u.Age ,"asc");
            //使用 QueryParameter 数组作为条件，适合于多个并列的And条件
            //q.Select().Where(new QueryParameter[] { new QueryParameter("Age", PWMIS.Common.enumCompare.NoSmaller, 15) }).OrderBy(u.Age, "asc"); 
            Console.WriteLine("OQL to SQL:\r\n"+q.ToString ());

//*************构建 OQL 查询表达式 ******* end ************

//查询实体列表
            var result = EntityQuery<User>.QueryList(q);
            Console.WriteLine("查询实体集合成功，数量："+result .Count );

Console.WriteLine("\r\nExecuted SQL Text:\r\n{0}\r\n", PWMIS.DataProvider.Data.CommandLog.Instance.CommandText);

//查询单个实体
            u.Name = "zhang san";
            q.Select().Where(u.Name);
            Console.WriteLine("OQL to SQL:\r\n" + q.ToString());
            User u1 = EntityQuery<User>.QueryObject(q);
            if (u1 != null)
                Console.WriteLine("查询单个实体成功！");

Console.WriteLine("\r\nExecuted SQL Text:\r\n{0}\r\n", PWMIS.DataProvider.Data.CommandLog.Instance.CommandText);

//直接使用EntityQuery<T>.Instance 属性的插入、修改、删除方法
            u.Name = "li si3";
            u.Age = 15;
            if (EntityQuery<User>.Instance.Insert(u) > 0)
                Console.WriteLine("插入实体成功！"); //将自动为ID属性赋值

Console.WriteLine("\r\nExecuted SQL Text:\r\n{0}\r\n", PWMIS.DataProvider.Data.CommandLog.Instance.CommandText);

u.Age = 25;
            if (EntityQuery<User>.Instance.Update (u) > 0)
                Console.WriteLine("修改实体成功！");

Console.WriteLine("\r\nExecuted SQL Text:\r\n{0}\r\n", PWMIS.DataProvider.Data.CommandLog.Instance.CommandText);

User u2 = new User();
            u2.Name = "wang wu";
            u2.Age = 20;

//使用EntityQuery<T> 的实例对象方法更新实体
            //只会更新赋值过的属性值
            EntityQuery<User> eq = new EntityQuery<User>(u2);
            if (eq.SaveAllChanges() > 0)
                Console.WriteLine("更新实体成功！");

Console.WriteLine("\r\nExecuted SQL Text:\r\n{0}\r\n", PWMIS.DataProvider.Data.CommandLog.Instance.CommandText);

Console.Read();
        }
    }
}

UPDATE `tb_user` SET `Age`=@P0 WHERE `ID`=@P1