DD.WellWorkover.Cloud/ConsoleApp1/Program.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using AsbCloudApp.Data;
using AsbCloudApp.Services;
using AsbCloudDb.Model;
using AsbCloudInfrastructure;
using CliWrap;
using Mapster;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(/*string[] args*/)
        {
            var db = ServiceFactory.Context;
            var q = db.TelemetryDataSaub
                .Select(t => new {
                    t.IdTelemetry,
                    t.DateTime,
                    t.WellDepth,
                })
                .GroupBy(t => t.IdTelemetry)
                .Select(g => new { 
                    Id = g.Key,
                    First = g.OrderBy(t => t.DateTime).FirstOrDefault(),
                    Last = g.OrderBy(t => t.DateTime).LastOrDefault(),
                });
            var d = q.AsNoTracking().ToArray();
        }        
    }
}