i want to check weather a user is in my database (checking with the id). i am using the following code. It is working. i just want to know ,is this the right way or is there any other method for doing this better(like using COUNT(\*) or any other query). I am doing my project in MVC4

```
  public bool CheckUser(int mem_id)
    {
        bool flag = false;
        using (SqlConnection con = new SqlConnection(Config.ConnectionString))
        {
            using (SqlCommand cmd = new SqlCommand("SELECT Id FROM Mem_Basic WHERE Id="+ mem_id +"", con))
            {
                con.Open();
                SqlDataReader reader = cmd.ExecuteReader();
                if (reader.Read())
                {
                    flag = true;
                }
            }
        }
        return flag;
    }

```