SQL Server 2022 Release Candidate 0 is now available 

How to Install SQL Server 2022 Release Candidate 0 

 ALTER DATABASE dbname SET DELAYED_DURABILITY = DISABLED | ALLOWED | FORCED;

 COMMIT TRANSACTION WITH (DELAYED_DURABILITY = ON);

 BEGIN ATOMIC WITH (DELAYED_DURABILITY = ON, ...)

CREATE TABLE tblData(
    ID INT IDENTITY(1, 1),
    Data1 VARCHAR(50),
    Data2 INT
);
CREATE CLUSTERED INDEX PK_tblData ON tblData(ID);
CREATE NONCLUSTERED INDEX IX_tblData_Data2 ON tblData(Data2);
 
-------------------------

alter database testdb2 SET DELAYED_DURABILITY = FORCED;

-------------------------

SET NOCOUNT ON
Print 'DELAYED_DURABILITY = FORCED'
DECLARE @counter AS INT = 0
DECLARE @start datetime = getdate()
WHILE (@counter < 10000)
BEGIN
      INSERT INTO tblData (Data1, Data2) VALUES('My Data', @counter)
      SET @counter += 1
END
Print DATEDIFF(ms,@start,getdate());
GO

-------------------------

alter database testdb2 SET DELAYED_DURABILITY = DISABLED;
truncate table tblData;
-------------------------

SET NOCOUNT ON
Print 'DELAYED_DURABILITY = DISABLED'
DECLARE @counter AS INT = 0
DECLARE @start datetime = getdate()
WHILE (@counter < 10000)
BEGIN
      INSERT INTO tblData (Data1, Data2) VALUES('My Data', @counter)
      SET @counter += 1
END
Print DATEDIFF(ms,@start,getdate());
GO

-----------------------

 DELAYED_DURABILITY = FORCED
666
DELAYED_DURABILITY = DISABLED
2883

using SisoDb.Sql2008;

namespace SisoDbTests
{
    public class Customer 
    {
        public int Id { get; set; } 
        public int CustomerNo { get; set; }
        public string Name { get; set; } 
    }

    class Program
    {
        static void Main(string[] args)
        {
            /*var cnInfo = new SqlCe4ConnectionInfo(@"Data source=sisodb2013.sdf;");
            var db = new SqlCe4DbFactory().CreateDatabase(cnInfo);
            db.EnsureNewDatabase();*/

            var cnInfo = new Sql2008ConnectionInfo(@"Data Source=(local);Initial Catalog=sisodb2013;Integrated Security = true");            
            var db = new Sql2008DbFactory().CreateDatabase(cnInfo);            
            db.EnsureNewDatabase();

            var customer = new Customer 
            {
                CustomerNo = 20,
                Name = "Vahid" 
            };
            db.UseOnceTo().Insert(customer);

            using (var session = db.BeginSession()) 
            {
                var info = session.Query<Customer>().Where(c => c.CustomerNo == 20).FirstOrDefault();

                var info2 = session.Query<Customer>().Where(c => c.CustomerNo == 20 && c.Name=="Vahid").FirstOrDefault();
            }
        }
    }
}

 var info = session.Query<Customer>().Where(c => c.CustomerNo == 20).FirstOrDefault();

SELECT DISTINCT TOP(1) (s.[StructureId]),
                           s.[Json]
                    FROM   [CustomerStructure] s
                           LEFT JOIN [CustomerIntegers] mem0
                                ON  mem0.[StructureId] = s.[StructureId]
                                AND mem0.[MemberPath] = 'CustomerNo'
                    WHERE  (mem0.[Value] = 20);

var info2 = session.Query<Customer>().Where(c => c.CustomerNo == 20 && c.Name=="Vahid").FirstOrDefault();

SELECT DISTINCT TOP(1) (s.[StructureId]),
                           s.[Json]
                    FROM   [CustomerStructure] s
                           LEFT JOIN [CustomerIntegers] mem0
                                ON  mem0.[StructureId] = s.[StructureId]
                                AND mem0.[MemberPath] = 'CustomerNo'
                           LEFT JOIN [CustomerStrings] mem1
                                ON  mem1.[StructureId] = s.[StructureId]
                                AND mem1.[MemberPath] = 'Name'
                    WHERE  ((mem0.[Value] = 20) AND (mem1.[Value] = 'Vahid'));