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.Net ORM Fastest ORM Simple Easy Sqlite orm Oracle ORM Mysql Orm postgresql ORm SqlServer oRm 达梦 ORM 人大金仓 ORM 神通ORM C# ORM , C# ORM .NET ORM NET5 ORM .NET6 ORM ClickHouse orm QuestDb

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SqlSugar ORM

SqlSugar ORM is a library providing Object/Relational Mapping (ORM)

An ORM framework from the future

Using SqlSugar is very simple , And it's powerful.


  • Support Cross database query
  • Support SqlServer、MySql、PgSql and Oracle insert bulkcopy
  • Split table big data self-processing
  • Support Multi-tenant, multi-library transactions
  • Support CodeFirst data migration.
  • Support Join query 、 Union all 、 Subquery
  • Support Configure the query
  • Support DbFirst import entity class from database, or use Generation Tool.
  • Support one-to-many and many-to-many navigation properties
  • Support MySql、SqlServer、Sqlite、Oracle 、 postgresql 、QuestDb、ClickHouse、达梦、人大金仓 、神通数据库、瀚高、MsAccess、华为GaussDB、GBase 8s、Odbc、Custom
  • Support AOP 、 Diff Log 、 Query Filter


Other Select Insert Update Delete
Nuget Query Insert Update Delete
Start guide Join query Insert without entity Update without entity Delete without entity
Multiple databases Include query Include Insert Include Update Include Delete
中文文档 Cross database query Insert by json Update by json Delete by json

Feature characteristic

Feature1 : Join query

Super simple query syntax

var query  = db.Queryable<Order>()
            .LeftJoin<Custom>  ((o, cus) => o.CustomId == cus.Id)
            .LeftJoin<OrderItem> ((o, cus, oritem ) => o.Id == oritem.OrderId)
            .LeftJoin<OrderItem> ((o, cus, oritem , oritem2) => o.Id == oritem2.OrderId)
            .Where(o => o.Id == 1)  
            .Select((o, cus) => new ViewOrder { Id = o.Id, CustomName = cus.Name })
  [o].[Id] AS [Id],
  [cus].[Name] AS [CustomName]
  [Order] o
  Left JOIN [Custom] cus ON ([o].[CustomId] = [cus].[Id])
  Left JOIN [OrderDetail] oritem ON ([o].[Id] = [oritem].[OrderId])
  Left JOIN [OrderDetail] oritem2 ON ([o].[Id] = [oritem2].[OrderId])
  ([o].[Id] = @Id0)

Feature2 :Include Query、Insert、Delete and Update

//query  by nav
var list=db.Queryable<Test>()
           .Includes(x => x.Provinces,x=>x.Citys ,x=>x.Street) //multi-level
           .Includes(x => x.ClassInfo) 
//insert by nav
 db.InsertNav(list) //Finer operation than EFCore's SaveChange
            .Include(z1 => z1.SchoolA).ThenInclude(z1 => z1.RoomList)//multi-level
            .Include(z1 => z1.Books) 
//delete by nav               
            .Include(z1 => z1.SchoolA) .ThenInclude(z1 => z1.RoomList)//multi-level
            .Include(z1 => z1.Books) 
//update by nav     
            .Include(z1 => z1.SchoolA) .ThenInclude(z1 => z1.RoomList)//multi-level
            .Include(z1 => z1.Books) 

Feature3 : Page query

 int pageIndex = 1; 
 int pageSize = 20;
 int totalCount=0;
 var page = db.Queryable<Student>().ToPageList(pageIndex, pageSize, ref totalCount);

Feature4 : Dynamic expression

var names= new string [] { "a","b"};
Expressionable<Order> exp = new Expressionable<Order>();
foreach (var item in names)
    exp.Or(it => it.Name.Contains(item.ToString()));
var list= db.Queryable<Order>().Where(exp.ToExpression()).ToList();
SELECT [Id],[Name],[Price],[CreateTime],[CustomId]
       FROM [Order]  WHERE (
                     ([Name] like '%'+ CAST(@MethodConst0 AS NVARCHAR(MAX))+'%') OR 
                     ([Name] like '%'+ CAST(@MethodConst1 AS NVARCHAR(MAX))+'%')

Feature5 : Multi-tenant transaction

//Creaate  database object
SqlSugarClient db = new SqlSugarClient(new List<ConnectionConfig>()
    new ConnectionConfig(){ ConfigId="0", DbType=DbType.SqlServer,  ConnectionString=Config.ConnectionString, IsAutoCloseConnection=true },
    new ConnectionConfig(){ ConfigId="1", DbType=DbType.MySql, ConnectionString=Config.ConnectionString4 ,IsAutoCloseConnection=true}

var mysqldb = db.GetConnection("1");//mysql db
var sqlServerdb = db.GetConnection("0");// sqlserver db
            mysqldb.Insertable(new Order()
                CreateTime = DateTime.Now,
                CustomId = 1,
                Name = "a",
                Price = 1


Feature6 : Singleton Pattern

Implement transactions across methods

public static SqlSugarScope Db = new SqlSugarScope(new ConnectionConfig()
            DbType = SqlSugar.DbType.SqlServer,
            ConnectionString = Config.ConnectionString,
            IsAutoCloseConnection = true 
  db=> {
            db.Aop.OnLogExecuting = (s, p) =>
  using (var tran = Db.UseTran())
               new Test2().Insert(XX);
               new Test1().Insert(XX);

Feature7 : Query filter

//set filter
db.QueryFilter.Add(new TableFilterItem<Order>(it => it.Name.Contains("a")));  
//SELECT [Id],[Name],[Price],[CreateTime],[CustomId] FROM [Order]  WHERE  ([Name] like '%'[email protected]+'%')  

db.Queryable<OrderItem, Order>((i, o) => i.OrderId == o.Id)
        .Where(i => i.OrderId != 0)
//SELECT i.* FROM [OrderDetail] i  ,[Order]  o  WHERE ( [i].[OrderId] = [o].[Id] )  AND 
//( [i].[OrderId] <> @OrderId0 )  AND  ([o].[Name] like '%'[email protected]+'%')

Feature8 : Insert or update

insert or update

    var x = Db.Storageable(list2).ToStorage();  

insert into not exists

var x = Db.Storageable(list).SplitInsert(it => !it.Any()).ToStorage()

Feature9 :Auto split table

Split entity

[SplitTable(SplitType.Year)]//Table by year (the table supports year, quarter, month, week and day)
 public class SplitTestTable
     [SugarColumn(IsPrimaryKey =true)]
     public long Id { get; set; }
     public string Name { get; set; }
     //When the sub-table field is inserted, which table will be inserted according to this field. 
     //When it is updated and deleted, it can also be convenient to use this field to      
     //find out the related table 
     public DateTime CreateTime { get; set; }

Split query

 var lis2t = db.Queryable<OrderSpliteTest>()
.SplitTable(DateTime.Now.Date.AddYears(-1), DateTime.Now)

Feature10: Big data insert or update

//Insert A million only takes a few seconds
//update A million only takes a few seconds
db.Fastest<RealmAuctionDatum>().BulkUpdate(GetList());//A million only takes a few seconds完
db.Fastest<RealmAuctionDatum>().BulkUpdate(GetList(),new string[]{"id"},new string[]{"name","time"})//no primary key
//if exists update, else  insert
 var x= db.Storageable<Order>(data).ToStorage();
//set table name
//set page 

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