FROM and WHERE clauses.
Agree 100%.
I am not a big fan of CASCADING effects (I rather do it 'by hand'), but
in this case it was a really easy solution.
Thanks you for your response.
Regards,
Erwin Moller
David J.
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rows that had a 1 for parentissueid. (5 in my
testcase).
That was correct, and as I intended, but why does Postgres answer
DELETE 1 instead of DELETE 6?
Can somebody explain that to me please?
Thanks for your time.
Regards,
Erwin Moller
PS: I found a few possible relevant postings. One of them
. :-/
Can anybody comment on this behaviour? Am I missing something?
Thanks!
Regards,
Erwin Moller
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Alvaro Herrera schreef:
Erwin Moller wrote:
I thought a transaction that is rolled back, rolls back *everything*
done in that transaction.
Appearantly sequences are not included.
Hi Alvaro,
Thanks for your reply.
Yes. This is actually a desirable property, because it allows
been looking through the manual, but cannot find anything. Maybe
it doesn't exist.
Thanks for your time.
Regards,
Erwin Moller
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A. Kretschmer schreef:
In response to Erwin Moller :
Hi,
Is it possible to create a range of dates or numbers inside a query
without wrining in procedural language?
I am looking for something that creates some kind of 'temp table' inside
a query.
eg:
generate_Series():
test
,
Erwin Moller
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Craig Ringer schreef:
Erwin Moller wrote:
No, that is not the kind of chicken I was talking about. ;-)
My chicken is more along these lines:
I often have some tables to which everything is related (eg tblcourse
that contains everything belonging to a certain course).
I don't want to make
Hi Pavel,
Thanks for that.
But I already wrote a nice extension to my DB-class in PHP that uses
Thomas Kellerer's approach.
It was simple once you know how to retrieve the info from the
systemtables. :-)
Regards,
Erwin Moller
Pavel Stehule schreef:
Hello
I used this code
CREATE
Erwin Moller schreef:
Craig Ringer schreef:
Erwin Moller wrote:
No, that is not the kind of chicken I was talking about. ;-)
My chicken is more along these lines:
I often have some tables to which everything is related (eg
tblcourse that contains everything belonging to a certain course).
I
kind of FK 'walker'.
I want this because:
1) I hate DELETE CASCADE because I am chicken (So I use a script to
delete all related records in the right order in a transaction)
2) I have a lot of tables and am afraid I miss some. And I am also a bit
lazy .-)
Thanks for your time.
Regards,
Erwin
ries van Twisk schreef:
On Nov 18, 2008, at 9:47 AM, Erwin Moller wrote:
Hi group,
Considering following (simplified) example:
CREATE TABLE tblnr1(
nr1id SERIAL PRIMARY KEY,
firstname TEXT
);
CREATE TABLE tblnr2(
nr2id SERIAL PRIMARY KEY,
nr1id INTEGER REFERENCES tblnr1(nr1id)
);
CREATE
Thomas Kellerer schreef:
Erwin Moller, 18.11.2008 15:47:
Suppose I want to delete a record in tblnr1.
Does Postgres has some command/procedure/function to list tables that
have FK constraints on that table (tblnr1)
That could be resolved with a query against the INFORMATION_SCHEMA
Something
Shane Ambler schreef:
ries van Twisk wrote:
On Nov 18, 2008, at 9:47 AM, Erwin Moller wrote:
Hi group,
Considering following (simplified) example:
snip
Suppose I want to delete a record in tblnr1.
Does Postgres has some command/procedure/function to list tables
that have FK constraints
because that makes sense in my current project.)
I Googled a little for the errormessage, but to no avail.
The second query is also good enough for me, but I am curious what I am
missing here.
What is causing this?
Thanks for your time.
Regards,
Erwin Moller
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Raymond O'Donnell schreef:
On 12/11/2008 18:08, Erwin Moller wrote:
LEFT OUTER JOIN tblcategorypropertylang AS CPL ON
((CLP.languageid=DRV1.languageid) AND
(CPL.categorypropertyid=DRV1.categorypropertyid));
ERROR: missing FROM-clause entry for table clp
You've a typo in the query
(probably the
latter)
Anyway, Is it possible to have psql working with UTF8 in a windows
commandprompt?
TIA!
Regards,
Erwin Moller
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' on the fly, I
should tell WHAT I am using.
What I don't understand is why Postgres8.1 need the cast to TEXT for 1
entry in my derived table, and NOT when I use more (using UNION)??
Any clues much appriciated. :-)
Regards and TIA,
Erwin Moller
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---
Erwin Moller
Darwine BV
Erwin Moller wrote:
SELECT U.userid, U.username,
(SELECT G.groupname FROM tblgroup WHERE (G.userid=U.userid)) AS ingroup
typo, that should be 'tblgroup as G' of course.
FROM tbluser WHERE (bla..bla...);
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Erwin Moller
Darwine BV
Groenendaal 25f
3011 SK Rotterdam
tel
general and is the answer 'it depends'?
I found a lot of queries I wrote like that in earlier projects, and I
wonder if I should fix them.
Thanks for any insights!
Regards,
Erwin Moller
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Erwin Moller
Darwine BV
Groenendaal 25f
3011 SK Rotterdam
tel 010-2133996
A. Kretschmer wrote:
am Fri, dem 07.09.2007, um 12:30:06 +0200 mailte Erwin Moller folgendes:
Hi group,
Does anybody know of an tutorial for EXPLAIN for idiots like me?
(I am fairly confortable with Postgres, but never used EXPLAIN before.)
I need to optimize a few slow running queries
/performance-tips.html
A bit hard for starters. :-/
Any tips/sites?
TIA
Regards,
Erwin
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Erwin Moller
Darwine BV
Groenendaal 25f
3011 SK Rotterdam
tel 010-2133996
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TIP 6: explain
it worked for some reason beyound my meager knowledge.
Thanks to Oleg Bartunov too for his suggestion about writing my own
procedure.
This solution seemed simpler and worked the first time right away.
Thanks for your help!
Regards,
Erwin Moller
If your locale setting is not C then mark needed
, divafdelingwerkgever);
Step 2 worked fine: no stemming.
But how do I cange my step6 (trigger) so it keeps using 'simple'?
Or do I have to change the index itself (step4) too? Or both?
Please advise.
Thanks for your time.
Regards,
Erwin Moller
---
PS: This is my
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