Comments on: 15 Advanced PostgreSQL Commands with Examples

By: Paritosh

Paritosh — Tue, 15 Mar 2011 14:03:25 +0000

Thank you very much for this useful tutorial.

By: syed

syed — Tue, 15 Mar 2011 06:18:51 +0000

Wonderful!! It helped lot

But I have 2 more queries , I am trying to find out whether any autosize or autogrowth Option is available in the Postgresql which causes db to grow beyond allocated size..

2) how to find the actual used space from the allocated database size?

Thanks,
Syed

By: Jesper Wallin

Jesper Wallin — Wed, 19 Jan 2011 13:52:46 +0000

Thanks for a really useful article! Some things are considered bad practice on bigger tables (like COUNT(*) for example), but it sure does the job.

By: Paritosh

Paritosh — Sat, 08 Jan 2011 21:37:57 +0000

Great Article! You are requested to inform me about your next article

By: Mota

Mota — Wed, 29 Dec 2010 21:26:43 +0000

Thank You!
This article is very useful for me.

By: PostgreSQL Trigger Tutorial with EMP Table Examples

PostgreSQL Trigger Tutorial with EMP Table Examples — Wed, 06 Oct 2010 06:04:14 +0000

[...] some postgreSQL commands, refer to our earlier 15 Advanced postgreSQL Commands [...]

By: Adam

Adam — Thu, 29 Jul 2010 15:26:04 +0000

To get the n’th min or max from a table, you could do something like this:
SELECT col_name FROM table ORDER BY col_name OFFSET 10 LIMIT 1;

Use ORDER BY DESC for max

By: Andrew J. Lazarus

Andrew J. Lazarus — Tue, 15 Dec 2009 18:32:33 +0000

For getting the second-minimum of a table, if you are not concerned with tie values, it’s much faster to use
SELECT m FROM mytable ORDER BY m LIMIT 1 OFFSET 1;
if m is indexed

By: Chris

Chris — Thu, 27 Aug 2009 18:14:07 +0000

Great article. The commands to find overall table/database size were extremely useful.

By: Daddy, I found it!, 15 Awesome Linux Find Command Examples (Part2)

Daddy, I found it!, 15 Awesome Linux Find Command Examples (Part2) — Mon, 29 Jun 2009 23:50:05 +0000

[...] 15 Advanced PostgreSQL Command Examples [...]