Raw SQL Query without DbSet - Entity Framework Core

Question

With Entity Framework Core removing dbData.Database.SqlQuery I can\'t find a solution to build a raw SQL Query for my full-text search query th

Answer 1

try this: (create extension method)

public static List ExecuteQuery(this dbContext db, string query) where T : class, new()
        {
            using (var command = db.Database.GetDbConnection().CreateCommand())
            {
                command.CommandText = query;
                command.CommandType = CommandType.Text;

                db.Database.OpenConnection();

                using (var reader = command.ExecuteReader())
                {
                    var lst = new List();
                    var lstColumns = new T().GetType().GetProperties(BindingFlags.DeclaredOnly | BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic).ToList();
                    while (reader.Read())
                    {
                        var newObject = new T();
                        for (var i = 0; i < reader.FieldCount; i++)
                        {
                            var name = reader.GetName(i);
                            PropertyInfo prop = lstColumns.FirstOrDefault(a => a.Name.ToLower().Equals(name.ToLower()));
                            if (prop == null)
                            {
                                continue;
                            }
                            var val = reader.IsDBNull(i) ? null : reader[i];
                            prop.SetValue(newObject, val, null);
                        }
                        lst.Add(newObject);
                    }

                    return lst;
                }
            }
        }

Usage:

var db = new dbContext();
string query = @"select ID , Name from People where ... ";
var lst = db.ExecuteQuery(query);

my model: (not in DbSet):

public class PeopleView
{
    public int ID { get; set; }
    public string Name { get; set; }
}

tested in .netCore 2.2 and 3.0.

Note: this solution has the slow performance