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SqlSugar ORM

SqlSugar is .NET open source ORM framework, maintained and updated by Fructose Big Data Technology team, the most easy-to-use ORM out of the box

Advantages: [Low code] [High performance] [Super simple] [Comprehensive features] [ Multi-database compatible] [Suitable products]

Support .NET

.net framework.net core3.1.ne5.net6.net7.net8 .net9 .net10

Support database

MySql、SqlServer、Sqlite、Oracle 、 postgresql、达梦、 人大金仓(国产推荐)、神通数据库、瀚高、Access 、OceanBase TDengine QuestDb Clickhouse MySqlConnector、华为 GaussDB 南大通用 GBase、MariaDB、Tidb、Odbc、Percona Server, Amazon Aurora、Azure Database for MySQL、 Google Cloud SQL for MySQL、custom database

Description

1. Truly achieve zero SQL ORM table building, index and CRUD all support
2. Support.NET millions of big data write, update, subtable and has billions of query statistics mature solutions
3. Support SAAS complete application: cross-database query, audit, tenant sub-database, tenant sub-table and tenant data isolation
4. Support low code + workflow (dynamic class building, dynamic table building, non-entity multi-library compatible with CRUD, JSON TO SQL, custom XML, etc.)
5. Support ValueObject, discriminator, repository, UnitOfWork, DbContext, AOP

Documentation

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 })
            .ToList();   

SELECT
  [o].[Id] AS [Id],
  [cus].[Name] AS [CustomName]
FROM
  [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])
WHERE
  ([o].[Id] = @Id0)

Feature2 :Include Query、Insert、Delete and Update

//Includes
var list=db.Queryable<Test>()
           .Includes(x => x.Provinces,x=>x.Citys ,x=>x.Street) //multi-level
           .Includes(x => x.ClassInfo) 
           .ToList();

//Includes+left join        
var list5= db.Queryable<Student_004>()
           .Includes(x => x.school_001, x => x.rooms)
           .Includes(x => x.books)
           .LeftJoin<Order>((x, y) => x.Id==y.sid)
           .Select((x,y) => new Student_004DTO
           {
               SchoolId = x.SchoolId,
               books = x.books,
               school_001 = x.school_001,
               Name=y.Name
           })
           .ToList();          

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
 
db.BeginTran();
            mysqldb.Insertable(new Order()
            {
                CreateTime = DateTime.Now,
                CustomId = 1,
                Name = "a",
                Price = 1
            }).ExecuteCommand();
            mysqldb.Queryable<Order>().ToList();
            sqlServerdb.Queryable<Order>().ToList();

db.CommitTran();

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) =>
            {
                Console.WriteLine(s);
            };
 });
 
 
  using (var tran = Db.UseTran())
  {
          
              
               new Test2().Insert(XX);
               new Test1().Insert(XX);
               ..... 
                ....
                         
             tran.CommitTran(); 
 }

Feature7 : Query filter

//set filter
db.QueryFilter.Add(new TableFilterItem<Order>(it => it.Name.Contains("a")));  
 
   
db.Queryable<Order>().ToList();
//SELECT [Id],[Name],[Price],[CreateTime],[CustomId] FROM [Order]  WHERE  ([Name] like '%'+@MethodConst0+'%')  

db.Queryable<OrderItem, Order>((i, o) => i.OrderId == o.Id)
        .Where(i => i.OrderId != 0)
        .Select("i.*").ToList();
//SELECT i.* FROM [OrderDetail] i  ,[Order]  o  WHERE ( [i].[OrderId] = [o].[Id] )  AND 
//( [i].[OrderId] <> @OrderId0 )  AND  ([o].[Name] like '%'+@MethodConst1+'%')
 

Feature8 : Insert or update

insert or update

Db.Storageable(list2).ExecuteCommand();
Db.Storageable(list2).PageSize(1000).ExecuteCommand();
Db.Storageable(list2).PageSize(1000,exrows=> {   }).ExecuteCommand();

Feature9 : Auto split table

Split entity

[SplitTable(SplitType.Year)]//Table by year (the table supports year, quarter, month, week and day)
[SugarTable("SplitTestTable_{year}{month}{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 
     [SplitField] 
     public DateTime CreateTime { get; set; }
 }

Split query

 var lis2t = db.Queryable<OrderSpliteTest>()
.SplitTable(DateTime.Now.Date.AddYears(-1), DateTime.Now)
.ToPageList(1,2);　

Feature10 : Big data insert or update

10.1 BulkCopy
db.Fastest<Order>().BulkCopy(lstData);//insert
db.Fastest<Order>().PageSize(100000).BulkCopy(insertObjs);
db.Fastest<System.Data.DataTable>().AS("order").BulkCopy(dataTable);
 
10.2 BulkUpdate
db.Fastest<Order>().BulkUpdate(GetList())//update 
db.Fastest<Order>().PageSize(100000).BulkUpdate(GetList()) 
db.Fastest<Order>().BulkUpdate(GetList(),new string[] { "Id"});//no primary key
db.Fastest<Order>().BulkUpdate(GetList(), new string[]{"id"},
                     new string[]{"name","time"})//Set the updated column
//DataTable                           
db.Fastest<System.Data.DataTable>().AS("Order").BulkUpdate(dataTable,"Id");//Id is primary key
db.Fastest<System.Data.DataTable>().AS("Order").BulkUpdate(dataTable,"Id",Set the updated column);
                          

10.3 BulkMerge （5.1.4.109）
db.Fastest<Order>().BulkMerge(List);
db.Fastest<Order>().PageSize(100000).BulkMerge(List);
 

10.4 BulkQuery
db.Queryable<Order>().ToList();//Slightly faster than Dapper
//Suitable for big data export
List<Order> order = new List<Order>(); 
db.Queryable<Order>().ForEach(it=> { order.Add(it); } ,2000);

10.5 BulkDelete
db.Deleteable<Order>(list).PageSize(1000).ExecuteCommand();