Re: Accessing database statistics

Поиск
Список
Период
Сортировка
От Duncan Adams (DNS)
Тема Re: Accessing database statistics
Дата
Msg-id 7DD34E6DF5CD1B4283DDAB96A855DCED2F33B5@vodabemail1.vodacom.co.za
обсуждение исходный текст
Ответ на Accessing database statistics  ("Tony Griffiths(RA)" <griffitt@cs.man.ac.uk>)
Список pgsql-novice
for the first part u might try

select count(*) from <table>;

-----Original Message-----
From: Tony Griffiths(RA) [mailto:griffitt@cs.man.ac.uk]
Sent: Thursday, May 30, 2002 2:01 PM
To: pgsql-novice@postgresql.org
Subject: [NOVICE] Accessing database statistics


Hi,
I need to write a query that returns the number of rows currently stored
in a table. I presume that I issue a query against the system tables,
but don't know which one(s) to do this against. So a couple of questions:

1) With specific reference to my problem, how do I do this?
2) More generally, is there any where that gives detailed descriptions
of the system tables?

Many thanks,


Tony


---------------------------(end of broadcast)---------------------------
TIP 6: Have you searched our list archives?

http://archives.postgresql.org

В списке pgsql-novice по дате отправления:

Предыдущее
От: "Tony Griffiths(RA)"
Дата:
Сообщение: Accessing database statistics
Следующее
От: John Taylor
Дата:
Сообщение: Re: Accessing database statistics