FastSql.Core

Light and convenient ORM Framework of .netcore

Demo:

class Program { static string sqlcon = "Data Source = 127.0.0.1;Initial Catalog = Test;User Id = sa;Password = sa@2019;"; static void Main(string[] args) {

       //FIND DATA
        var Sql = new CreateSql<Users>().Select().Where("ID=@ID");
        //UPDATA DATA
        // var Sql = new CreateSql<Users>().Updata().Where("ID=@ID");          
        //Delete DATA
        //  var Sql = new CreateSql<Users>().Delete().Where("ID=@ID");
        //exec sql
        using (var conn = new SqlConnection(sqlcon))
        {
            var rdata = conn.SqlQuery<Users>(Sql.ToSqlString(),new { ID=Guid.Parse("088941FE-075A-42C6-8937-5D1A1B795ACD") });
            Console.WriteLine(rdata.ToJsonString());
        }

   //Insert DATA
   {

            var Sql = new CreateSql<Users>().Insert();
            VAR parm= new Users();
             using (var conn = new SqlConnection(sqlcon))
        {
            var rdata = conn.SqlExecute(Sql.ToSqlString(),parm);
            Console.WriteLine(rdata);
        }

    }



        Console.ReadKey();
    }


    public class Users
    {
        [Key]
        public Guid ID { get; set; }
        public string Name { get; set; }
        public int Age { get; set; }
        public string Sex { get; set; }
        public string Addr { get; set; }
        public string Tell { get; set; }

    }
}
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2.0.0 Version 更新说明

注意：使用此方法时请先配制且加载默认数据库连接配制：

DbConfig.SqlConnectString="Data Source = 127.0.0.1;Initial Catalog = Test;User Id = sa;Password = sa@2019;"

1.查询表数据：

写法1：

var sql = new CreateSql().Select(); var rdata = DapperExt.QueryList(sql); 写法2：

var lsit= new CreateSql().Select().QueryList();

写法3：可以重载指定表名，或指定查询的字段如：

var sql = new CreateSql("Users").Select(new string[] {"Id","UserName" }); var rdata = DapperExt.QueryList(sql); 或者

var list= new CreateSql("Users").Select(new string[] {"Id","UserName" }). QueryList();

2.查询单个对象

var sql = new CreateSql().Select().Where("Id='843DB63F-252E-436F-B666-F4F8755793B8'"); var rdata = DapperExt.QueryList(sql);

或者

Var model=CreateSql().Select() .Where("Id='843DB63F-252E-436F-B666-F4F8755793B8'") .QueryFirst();

3.非锁表查询（常用于事务中查询） var sql = new CreateSql().SelectNoLock().Where("Id='843DB63F-252E-436F-B666-F4F8755793B8'"); var rdata = DapperExt.QueryList(sql); 或者

var data= new CreateSql().SelectNoLock().Where("Id='843DB63F-252E-436F-B666-F4F8755793B8'").QueryFirst();

4.新增操作

var model = new Users() { Id = Guid.NewGuid(), Age = 20, Sex = "女", UserName = "test", addr = "", CreateTime = DateTime.Now }; var sql = new CreateSql().Insert(); var rdata = DapperExt.Add(sql, model); 或者 var model = new Users() { Id = Guid.NewGuid(), Age = 20, Sex = "女", UserName = "test", addr = "", CreateTime = DateTime.Now }; var sql = new CreateSql().Insert().Add(model); 5.修改操作

var model = new Users() { Id = Guid.NewGuid(), Age = 20, Sex = "女", UserName = "test", addr = "", CreateTime = DateTime.Now }; var sql = new CreateSql().Updata().Where($"Id='843DB63F-252E-436F-B666-F4F8755793B8'"); var rdata = DapperExt.Modify(sql, model);

或者

var model = new Users() { Id = Guid.NewGuid(), Age = 20, Sex = "女", UserName = "test", addr = "", CreateTime = DateTime.Now }; var sql = new CreateSql().Updata().Where($"Id='843DB63F-252E-436F-B666-F4F8755793B8'").Modify(model);

6.删除操作

var sql = new CreateSql().Delete().Where($"Id='{data.Id}'");

var rdata = DapperExt.Remove(sql);

或者

var sql = new CreateSql().Delete().Where($"Id=@Id"); var rdata = DapperExt.Remove(sql,new { Id=Guid.Parse("F91BEE4E-67BE-4080-9C11-98C1A610F5C5") });

7.事务操作

说明：事务封装类：DapperTransaction，构造参数可以传入数据库连接字符串： var dt = new DapperTransaction(DbConfig.SqlConnectString) 1.事务处理操作：

var model = new Users() { Id = Guid.NewGuid(), Age = 20, Sex = "女", UserName = "test", addr = "", CreateTime = DateTime.Now };

using (var dt = new DapperTransaction(DbConfig.SqlConnectString))

{

var data = new CreateSql().Insert()

.Add(dt, model);

model.UserName = "69855";

var data2 = new CreateSql().SelectNoLock()

.Where($"Id='{model.Id}'").QueryFirst();

data2.UserName = "mystest";

var data3 = new CreateSql().Updata().Where($"Id='{data2.Id}'")

.Modify(dt, data2);

dt.Commit();

}

---

2.0.1 版本更新内容： 1.新增拉母表达式sql解析，例如：

       //select
       
        var sql = new CreateSql<Users>().Select(s => new { s.Id, s.UserName }).Where(w=>w.Sex=="男").QueryList();


        var user = new Users();
        
        //insert
        new CreateSql<Users>().Insert().Add(user);

        //update
        
        new CreateSql<Users>().Updata().Where(w=>w.Id==Guid.Empty).Modify(user);

        new CreateSql<Users>().Updata(u => u.UserName).Where(w => w.Id == Guid.Empty).Modify(user);

        //delete
        
        new CreateSql<Users>().Delete().Where(w=>w.Id==Guid.Empty).Remove();

---

2.0.2 版本更新内容： 新增DataTable返回数据方法的扩展实现。

1. public static DataTable GetDataTable(this string sql)
2. public static DataTable GetDataTable(this CreateSql createSql) where T : class, new()
3. public static DataTable GetDataTable(string sql, Dictionary<string, object> sqlparam)
4. public static DataTable GetDataTable(this CreateSql createSql, Dictionary<string, object> sqlparam) where T : class, new()

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2.0.3 版本更新内容： 修改拉姆达解释时部份类型无法解析的BUG.

2.0.4:版本更新BUG内容： DbConfig.SqlConnectString 只读改为可赋值。

2.0.5:版本更新内容： 1.新增多数据库的实现 mysql，oracle，postgresql，sqlite，access

2.0.6:版本更新内容 1.优化查询条件，and,or 添加拉母达表达式。 2.优化数据库配制连接，新增DbConfig.SetSqlConnect（string con）函数，提升安全性。

2.0.7:版本更新内容 1.更新运行时为.net6.

2.0.8:版本更新内容 1、新增查询数据表总数函数 2、修复where条件中拉母代条件为BOOL值的BUG

2.0.9:版本更新内容 1、修复多数据库类型生成SQL不兼容的问题。