string query = @"SELECT SUM(CAST(ConcurrentUsers AS INT)) FROM [website].[db]
                WHERE(ConcurrencyLicensing NOT LIKE 0)";

SqlConnection conn = new SqlConnection(entityBuilder.ProviderConnectionString);
SqlCommand cmd = new SqlCommand(query, conn);

        try
        {
            conn.Open();

            object userNameObj = cmd.ExecuteScalar();

            if(userNameObj != null)
            {
                int getUserName = (int)userNameObj;
                return getUserName;
            }
            else
            {
                return 0;
            }
        }
        finally
        {
            conn.Close();
        }