a.cs

	public object getTablesSchema(int a)
	{
		using (SqlConnection conn = getConnection(""))
			return getTablesSchema_impl(conn);
	}

	public object getTablesSchema_customDB(string db_name)
	{
		try {
			using (SqlConnection conn = getConnection_custom(db_name))
				return getTablesSchema_impl(conn);
		}
		catch (Exception e) {
			throw;
		}
	}
	
	private object getTablesSchema_impl(SqlConnection conn)
	{
		using (SqlCommand command = new SqlCommand("", conn))
		{
			conn.Open();
			command.CommandText = "SELECT table_name" +
						" FROM INFORMATION_SCHEMA.TABLES" +
						" order by table_name";

			return UtilsDB.getResults_ext(command);
		}
	}
	
	
	public static List<string> getResults_listSingleStr(SqlCommand command)
	{
		using (SqlDataReader reader = command.ExecuteReader())
		{
			return getResults_listSingleStr_impl(reader);
		}
	}
	
	private static List<string> getResults_listSingleStr_impl(SqlDataReader reader)
	{
		List<string> result = new List<string>();
		while (reader.Read())
		{
			result.Add(dbObjToStr(reader.GetValue(0)));
		}
		return result;
	}