Hello,
Consider this:
tbl_project(id, name, parent)
1 6
/ \ / \
2 3 7 8
/\
4 5
if tbl_project.parent = 0 then the project is the top parent.
Therefore, 1 and 6 have the field parent = 0.
So, say if you have project 5, do you
On Tue, 2005-07-26 at 11:45 +0100, Shaw, Chris - Accenture wrote:
Hello,
Consider this:
tbl_project(id, name, parent)
1 6
/ \ / \
2 3 7 8
/\
4 5
if tbl_project.parent = 0 then the project is the top parent.
Therefore, 1 and
Are you familiar with Joe Celko's tree theory? It might help you understand
more about the problem.
http://www.intelligententerprise.com/001020/celko.jhtml?_requestid=235427
--
Hello,
Consider this:
tbl_project(id, name, parent)
1 6
/ \ / \
2 3 7 8
/\
4 5
if
, but this query should work on MSSQL and Oracle.
HTH.
C.
-Original Message-
From: André Medeiros [mailto:[EMAIL PROTECTED]
Sent: 26 July 2005 12:53
To: Shaw, Chris - Accenture
Cc: php-general@lists.php.net
Subject: RE: [PHP] MySQL + PHP question
One thing I didn't quite explain myself well... I'm building this to
register objects on a permission system.
The SQL weight is heavy as it is, and I want to save queries as much as
possible. Making two queries to extract information about a project and
it's parent is not something I'd want to
You're missing the point here. I know how to get the parent project's
info. I know recursiveness. I _JUST_ don't know how to get the current
and parent project's info in just ONE QUERY (since I'm trying to save
them because the sql weight is getting pretty heavy).
--
PHP General Mailing List
André Medeiros [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
One thing I didn't quite explain myself well... I'm building this to
register objects on a permission system.
The SQL weight is heavy as it is, and I want to save queries as much as
possible. Making two queries to
On Tue, 2005-07-26 at 13:39 +0100, Mark Rees wrote:
André Medeiros [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
One thing I didn't quite explain myself well... I'm building this to
register objects on a permission system.
The SQL weight is heavy as it is, and I want to save
.
-Original Message-
From: Mark Rees [mailto:[EMAIL PROTECTED]
Sent: 26 July 2005 13:39
To: php-general@lists.php.net
Subject: Re: [PHP] MySQL + PHP question
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