NULL is designed for, but it
sure is convenient.
Regards,
Berend Tober
---(end of broadcast)---
TIP 4: Have you searched our list archives?
http://archives.postgresql.org
Peerri (sent by Nabble.com) wrote:
I'm with problems to record images in database in field type bytea.
I'm using visual basic 6.0 and object ado stream to convert binary.
They say me if another way exists to record the images in the data base.
This may not be for the faint of heart, but
that might not be feasible depending on
circumstances, like dropping and recreating the table and reloading
data, but you have to deal with foreign key and other dependencies and
so it is probably more work than justifiable for something that makes no
practical difference.
Regards,
Berend Tober
, although the transaction block prehaps provides appropriate
protection.
Regards,
Berend Tober
---(end of broadcast)---
TIP 3: Have you checked our extensive FAQ?
http://www.postgresql.org/docs/faq
Peter Futaro wrote:
I need to make a documentation for my database. The documentation I want is almost exactly like the result
of \d command. I want to make the report using a database manager application, and it requires
me to make my own report by typing the SQL command in it. Can you
I know that within a trigger function the functin name can be referenced
by the special variable TG_NAME, so I could include raise an exception
that identified its source with a line like:
RAISE EXCEPTION ''ERROR IN %'', TG_NAME;
Is there a similar set of special variables defined for
I'm interested in defining a covariance aggregate function. (As a
refresher, remember that covariance is a little bit like variance, but
is between two variables:
cov(X,Y)= XY - XY,
where the angular brackets in this case denote taking the averag.
Variance is a special case when X and Y
Hakan Kocaman wrote:
have you considered using pl/r.
http://www.joeconway.com/plr/
I think R got a covariance-function.
http://www.r-project.org/
That would be, like, the easy way.
Thanks!
Berend
begin:vcard
fn:Berend Tober
n:Tober;Berend
org:Seaworthy Systems, Inc.
adr:;;22 Main
Michael Fuhr wrote:
On Mon, Nov 21, 2005 at 11:03:22AM -0500, Berend Tober wrote:
I'm interested in defining a covariance aggregate function.
I think aggregates must take a single value, so the above won't
work as written. However, in PostgreSQL 8.0 or later you could
define
suppose I
can accomplish this formatting programmatically within the Delphi
application, but I was hoping to have the data base do it directly.
Thanks,
Berend Tober
Berend Tober [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Say I want to format calculated numeric output
,
Berend Tober
begin:vcard
fn:Berend Tober
n:Tober;Berend
org:Seaworthy Systems, Inc.
adr:;;22 Main Street;Centerbrook;CT;06409;USA
email;internet:[EMAIL PROTECTED]
tel;work:860-767-9061
url:http://www.seaworthysys.com
version:2.1
end:vcard
---(end of broadcast
Dean Gibson (DB Administrator) wrote:
CREATE TABLE new_name AS SELECT DISTINCT * FROM old_name;
DROP TABLE old_name;
ALTER TABLE new_name RENAME TO old_name;
The problem with this technique is that it doesn't account for indexes,
foreign key references, and other dependencies.
Another
Richard Huxton wrote:
Tim Nelson wrote:
I am getting division by zero on a calculated field ( sum(sales) is 0 )
It's a two-stage process, so you'll want a sub-query. Something like: ...
Thanks. That's a cool addition to my bag of tricks.
---(end of
WireSpot wrote:
Is it possible to dump an entire database but to skip one or two
tables? Or, conversely, to restore an entire dump except for one or
two tables? (Although I'd prefer the first version.)
The only related option for both pg_dump and pg_restore is --table,
which only takes 1
L van der Walt wrote:
I would like to secure Postgres completly.
Some issues that I don't know you to fix:
1. User postgres can use psql (...) to do anything.
2. User root can su to postgres and thus do anything.
3. Disable all tools like pg_dump
How do I secure a database if I don't trust
Greg Sabino Mullane wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
My original intention was to keep two sets of tables. The first
containing only the working set of current records. The second
containing all prior versions. I haven't experimented with such a setup
yet and I'm
Berend Tober wrote:
...See User Comments at
http://www.postgresql.org/docs/8.0/interactive/tutorial-inheritance.html;
for something that should set you afire.
And, commenting on my own post, try this cool function:
/*
The following is based on suggestion by Mike Rylander posted
Mike Rylander wrote:
On 9/20/05, Berend Tober [EMAIL PROTECTED] wrote:
/*
The following is based on suggestion by Mike Rylander posted on
Postgresql-General
Sun, 18 Sep 2005 23:29:51 +
Rylander's original suggestion employed a trigger and tracked
only row updates. My implementation
suresh ramasamy wrote:
i'm new to postgreSQL as well as new to database concepts. please tell me
how can i learn. i mean the easiest and fast way. Your help will be
appreciated.
Make an appropriate posting to pgsql-jobs?
---(end of
Andrus wrote:
How to create constraint so that NULL values are treated equal and second
insert is rejected ?
Rethink your data design --- this behavior is required by the SQL
standard.
I have a table of users permissions by departments
CREATE TABLE permission (
id serial,
Andrus wrote:
if department _id is NULL, user has access to all departments data.
This is your problem. You've assigned meaning to the value NULL.
CREATE TABLE permission (
id serial,
user_id CHAR(10) NOT NULL REFERENCES user,
permission_id CHAR(10) NOT NULL REFERENCES privilege,
UNIQUE
@postgresql.org
#
# Modified by Berend Tober 2005-06-17 to:
# a) include tcp port as command line parameter.
# b) include syntax help.
# c) include Postgresql version information in global.sql output file.
# d) append .sql file name suffix to dump output file.
# e) output
Zlatko Mati wrote:
I know that superusers are allowed to do everything on the database,
but I consider this as dangerous. I want to have some user group with
rights of creating new users and giving them some authorizations, but
without such wide power as superusers have. So,
I was thinking
Tom Lane wrote:
Berend Tober [EMAIL PROTECTED] writes:
Now what, oh most wise one?
OK, now I finally get the point: you are creating child tables in
different schemas than their parents live in. This creates a problem
because reverse-listing of the constraints varies depending on what
Simon Riggs wrote:
On Thu, 2005-05-19 at 23:27 -0400, Tom Lane wrote:
Berend Tober [EMAIL PROTECTED] writes:
Now what, oh most wise one?
OK, now I finally get the point: you are creating child tables in
different schemas than their parents live in.
...
Comments anyone
Tom Lane wrote:
...
I just ran into another inheritance-related oddness. Well maybe it is
not really an oddness -- you tell me.
The problem stems from the fact that I did not originally plan on using
inhertiance and so did not include the ONLY keyword in the FROM clause
of queries coded into
A few months ago, a question by Scott Frankel produced a suggestion from
Greg Patnude which I found very exciting that had to do with using pg
table inheritance to maintain an audit or row change history table. I've
been testing Patnude's idea and ran into a problem, described below, and
Scott Marlowe wrote:
On Wed, 2005-05-18 at 21:24, Mark Steckel wrote:
...We are proposing that
Postgres be used for the application database. Not too surprisingly we are
being asked for additional information because Postgres is open source.
So is the implication that they think open
Tom Lane wrote:
Berend Tober [EMAIL PROTECTED] writes:
But after doing a dump of the modified data base, the script created by
pg dump wants to recreate the history table as
...
CONSTRAINT person_name_check CHECK (((last_name IS NOT NULL) OR
(first_name IS NOT NULL))),
Hmm
Greg Patnude wrote:
Yeah this is where the inheritance model gets a little funky What do
you have SQL_INEHERITANCE set to when you dump the database ? Ive
never tested this so I dont know if it makes a difference being on or
off when you dump a table. You might try it and compare the two
Tom Lane wrote:
The case I tested seems to work in 7.3 as well:
CREATE TABLE person (last_name varchar(24),
first_name varchar(24),
CONSTRAINT person_name_check CHECK (((last_name IS NOT NULL) OR
(first_name IS NOT NULL;
CREATE TABLE person_change_history(
action VARCHAR(6),
Tom Lane wrote:
What do you get from
select conname, consrc from pg_catalog.pg_constraint
where contype = 'c' and conrelid = 'person'::regclass;
conname | consrc
Tom Lane wrote:
What do you get from
select conname, consrc from pg_catalog.pg_constraint
where contype = 'c' and conrelid = 'person'::regclass;
conname
|
consrc
Michael Fuhr wrote:
On Wed, Mar 30, 2005 at 09:11:09AM +0200, Shaun Clements wrote:
Can anyone tell me what the problem is here:
I am inserting into a table via a stored procedure, to a few columns within
the table and postgres is throwing a
CANNOT EXECUTE NULL QUERY.
EXECUTE ''INSERT INTO
I use a modified form of option 3 with an ON UPDATE RULE the update rule
copies the row to an inherited table...
I just gotta say that THAT is one COOL use of PG inheritance! Do you find that
it works well and is robust and all the good stuff it seems like would be the
case?
-- Berend
hi, is it possible to change the current user's password from a
function/stored procedure , I mean, is there a system function/stored
procedure to do it? like the dbo.sp_password found in adaptive server
anywhere.
CREATE OR REPLACE FUNCTION public.alter_password(name, name)
RETURNS
Tony Caduto wrote:
Hi,
Does anyone know if there is a way to get the backends IP address from
the PID?
I am using the view pg_stat_activity and it would be nice if it would
also display the IP address along with the PID.
I can see the IP address when I do a ps -ef but it would be nice to
-Original Message-
From: John DeSoi [mailto:[EMAIL PROTECTED]
Sent: 07 February 2005 04:21 PM
To: Shaun Clements
Cc: 'PgSql General'
Subject: Re: [GENERAL] Problem performing a restore of a data schema in
Windows
On Feb 7, 2005, at 8:22 AM, Shaun Clements wrote:
psql -U
On Tue, 8 Feb 2005 01:10 pm, CoL wrote:
hi,
Berend Tober wrote, On 2/7/2005 22:20:
I encountered what looks like unusually sorting behavior, and I'm
wondering if
anyone can tell me if this is supposted to happen (and then if so, why) or
if
this is a bug:
--
With 8.0.0 C
This can be easily done with pl/pgsql, visit the documentation at
http://www.postgresql.org/docs/7.3/interactive/programmer-pl.html
OT: seems like this is a questionnaire/survey application, yes?
- -
Jonel Rienton
FWIW, given the signature:
Reuben D. Budiardja, Dept. Physics and
i just wanted to share this with you, i wanted to do something like
this for a long time but just recently found out about create
aggregate reading old posts, so here it is, using user-defined
aggregate functions to concatenate results.
when it's numbers i usually use SUM to compute totals,
i just wanted to share this with you, i wanted to do something like
this for a long time but just recently found out about create
aggregate reading old posts, so here it is, using user-defined
aggregate functions to concatenate results.
when it's numbers i usually use SUM to compute totals,
I encountered what looks like unusually sorting behavior, and I'm wondering if
anyone can tell me if this is supposted to happen (and then if so, why) or if
this is a bug:
CREATE TABLE sample_table
(
account_id varchar(4),
account_name varchar(25)
)
WITHOUT OIDS;
INSERT INTO sample_table
anyone any ideas
If yes you should you have to use.
SELECT first_name,work_email FROM tb_contacts WHERE
tb_contacts.work_email ''
AND
tb_contacts.work_email IS NOT NULL;
See what happens with
SELECT first_name, work_email, LENGTH(COALESCE(work_email, ''))
FROM tb_contacts
WHERE
I'm trying to write a stored procedure in plpgsql that selects a row
and possibly increments one of its fields. I thought I would do SELECT
INTO my_record * FROM my_table FOR UPDATE WHERE ..., but apparently
plpgsql doesn't like the FOR UPDATE in a stored procedure. Does plpgsql
automatically
On Thu, Dec 02, 2004 at 10:53:37PM -0500, Berend Tober wrote:
I learned that the unusual behavior (or at least the behavior that
seems weird to me) regarding relational integrity and uniquness
constraints as been around for a while, and some people actually think
is is SUPPOSED to work
...have a Resource table and a Car table
and a ResCar many-to-many relation.
I don't think you need the ResCar table. The Car table defines a
many-to-many relation with Appointment. As does the Resource table. The
Car table contains a subset of rows from the Resource table.
...it's not
Planning on witting a rule for a view, and i was wondering if anyone
could suggest a good Internet resource?
http://www.postgresql.org
(Sorry, couldn't resist.)
---(end of broadcast)---
TIP 7: don't forget to increase your free space map
Planning on witting a rule for a view, and i was wondering if anyone
could suggest a good Internet resource?
http://www.postgresql.org
(Sorry, couldn't resist.)
But here is a simple working example of making a view updatable:
CREATE TABLE consumable (
consumable_pk serial NOT NULL,
I am trying to create a database, which allows me to store appointment
information. ...
Now, I want to have several tables, say Car and Driver, which INHERIT from
the Resource table. I also want AppRes table can enforce a ref. constraint
on the Resource table. So, in the future I can add a
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