Re: How to isolate the result of SELECT's?

Поиск
Список
Период
Сортировка
От Michael Nolan
Тема Re: How to isolate the result of SELECT's?
Дата
Msg-id CAOzAquJV0pjEtd_MQBG4oZ0eSkAJJ8vmjnVQe_Eu21EFNCVrBA@mail.gmail.com
обсуждение исходный текст
Ответ на How to isolate the result of SELECT's?  (Andre Lopes <lopes80andre@gmail.com>)
Список pgsql-general


On Sun, Mar 18, 2012 at 6:33 PM, Andre Lopes <lopes80andre@gmail.com> wrote:
Hi,

I need to do an operation that I will use some SELECT's and get the
results, but I want to have sure that those tables have not been
changed with INSERT's or UPDATES during the operation.

Example:

BEGIN OPERATION
Select field from table1;
...
Select other_field from table2;
...
END OPERATION

How can I lock these tables to assure that the tables are not getting
INSERTS's or UPDATE's during the operation?

Best Regards,\


Isn't that what 'begin transaction' and 'commit' are for?
 --
Mike Nolan

В списке pgsql-general по дате отправления:

Предыдущее
От: Andre Lopes
Дата:
Сообщение: How to isolate the result of SELECT's?
Следующее
От: Adrian Klaver
Дата:
Сообщение: Re: How to isolate the result of SELECT's?