Re: MAX(column1),MAX(column2),...
От | Travis Hoyt |
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Тема | Re: MAX(column1),MAX(column2),... |
Дата | |
Msg-id | DBEMKMGOMJAGKAKEPPEGEEJMDKAA.thoyt@npc.net обсуждение исходный текст |
Ответ на | Re: MAX(column1),MAX(column2),... ("Josh Berkus" <josh@agliodbs.com>) |
Список | pgsql-sql |
You could write a plpgsql function to select all the column names from the one of the system tables and do max($myvar) for each of the column names returned. select attname from pg_stats where tablename = 'yourtablename'; Will get you the list of columns. Just write a loop the loop through each one and do max(). Travis -----Original Message----- From: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql-owner@postgresql.org]On Behalf Of Josh Berkus Sent: Monday, April 15, 2002 3:34 PM To: Bjarte Aagnes; pgsql-sql@postgresql.org Subject: Re: [SQL] MAX(column1),MAX(column2),... Bjarte, > How do I list all column names and maximum values for each column in > a table. > I can list the column names, but can't see how to get the maximum of > each > column without typing max(name) for every column. That is exactly what you have to do. I do not understand the problem.If you are looking for some way to save yourself typingthe column names, it doesn't exist. -Josh Berkus ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://archives.postgresql.org
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