I have set up a FK as follows
ALTER TABLE lk_sub_con ADD FOREIGN KEY (type) REFERENCES
lk_sort_of_cont act(type_code);
However when I do this
INSERT INTO lk_sort_of_cont act (type_code) VALUES ('1') (ie: a NULL into
the FK) it works
Is this a bug?
---------------------------(end of broadcast)---------------------------
TIP 3: if posting/reading through Usenet, please send an appropriate
subscribe-nomail command to ma*******@postg resql.org so that your
message can get through to the mailing list cleanly 12  1486 
mike <mi**@bristolre ccc.co.uk> writes: I have set up a FK as follows
ALTER TABLE lk_sub_con ADD FOREIGN KEY (type) REFERENCES
lk_sort_of_cont act(type_code);
However when I do this
INSERT INTO lk_sort_of_cont act (type_code) VALUES ('1') (ie: a NULL into
the FK) it works
Is this a bug?
No.
NULLs are permitted in referencing columns unless that column is
declared NOT NULL.
-Doug
---------------------------(end of broadcast)---------------------------
TIP 1: subscribe and unsubscribe commands go to ma*******@postg resql.org
mike <mi**@bristolre ccc.co.uk> writes: I have set up a FK as follows
ALTER TABLE lk_sub_con ADD FOREIGN KEY (type) REFERENCES
lk_sort_of_cont act(type_code);
However when I do this
INSERT INTO lk_sort_of_cont act (type_code) VALUES ('1') (ie: a NULL into
the FK) it works
Is this a bug?
No.
NULLs are permitted in referencing columns unless that column is
declared NOT NULL.
-Doug
---------------------------(end of broadcast)---------------------------
TIP 1: subscribe and unsubscribe commands go to ma*******@postg resql.org
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On Thursday 10 June 2004 08:21 am, mike wrote: I have set up a FK as follows
ALTER TABLE lk_sub_con ADD FOREIGN KEY (type) REFERENCES
lk_sort_of_cont act(type_code);
However when I do this
INSERT INTO lk_sort_of_cont act (type_code) VALUES ('1') (ie: a NULL into
the FK) it works
Is this a bug?
No.
you have a table lk_sub_con. That table has the foreign key assigned.
This means it doesn't matter what you put into lk_sort_of_cont act , it matters
what you put into lk_sub_con.
The foreign key says something like
"If you put a value into field type of table lk_sub_con, the same value must
be existant in table lk_sort_of_cont act field type_code"
Try to add a null value to lk_sub_con.type - or any value that's not in
lk_sort_of_cont act. Postgres will throw an error.
If you don't want nulls in the referenced table lk_sort_of_cont act you haveto
define that there. Maybe you make the field type_code unique or the primary
key.
UC
- --
Open Source Solutions 4U, LLC 2570 Fleetwood Drive
Phone: +1 650 872 2425 San Bruno, CA 94066
Cell: +1 650 302 2405 United States
Fax: +1 650 872 2417
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.3 (GNU/Linux)
iD8DBQFAyIY4jqG XBvRToM4RArWZAJ wLGsUpEwCgPTybC bmkIE52op1fmwCf Wrfl
44hCrMlGYIaL8Av TXzeR7VI=
=yMO4
-----END PGP SIGNATURE-----
---------------------------(end of broadcast)---------------------------
TIP 1: subscribe and unsubscribe commands go to ma*******@postg resql.org
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On Thursday 10 June 2004 08:21 am, mike wrote: I have set up a FK as follows
ALTER TABLE lk_sub_con ADD FOREIGN KEY (type) REFERENCES
lk_sort_of_cont act(type_code);
However when I do this
INSERT INTO lk_sort_of_cont act (type_code) VALUES ('1') (ie: a NULL into
the FK) it works
Is this a bug?
No.
you have a table lk_sub_con. That table has the foreign key assigned.
This means it doesn't matter what you put into lk_sort_of_cont act , it matters
what you put into lk_sub_con.
The foreign key says something like
"If you put a value into field type of table lk_sub_con, the same value must
be existant in table lk_sort_of_cont act field type_code"
Try to add a null value to lk_sub_con.type - or any value that's not in
lk_sort_of_cont act. Postgres will throw an error.
If you don't want nulls in the referenced table lk_sort_of_cont act you haveto
define that there. Maybe you make the field type_code unique or the primary
key.
UC
- --
Open Source Solutions 4U, LLC 2570 Fleetwood Drive
Phone: +1 650 872 2425 San Bruno, CA 94066
Cell: +1 650 302 2405 United States
Fax: +1 650 872 2417
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.3 (GNU/Linux)
iD8DBQFAyIY4jqG XBvRToM4RArWZAJ wLGsUpEwCgPTybC bmkIE52op1fmwCf Wrfl
44hCrMlGYIaL8Av TXzeR7VI=
=yMO4
-----END PGP SIGNATURE-----
---------------------------(end of broadcast)---------------------------
TIP 1: subscribe and unsubscribe commands go to ma*******@postg resql.org
mike <mi**@bristolre ccc.co.uk> writes: INSERT INTO lk_sort_of_cont act (type_code) VALUES ('1') (ie: a NULL into
the FK) it works
Is this a bug?
No. Mark the column NOT NULL if you wish to disallow nulls.
regards, tom lane
---------------------------(end of broadcast)---------------------------
TIP 4: Don't 'kill -9' the postmaster
mike <mi**@bristolre ccc.co.uk> writes: INSERT INTO lk_sort_of_cont act (type_code) VALUES ('1') (ie: a NULL into
the FK) it works
Is this a bug?
No. Mark the column NOT NULL if you wish to disallow nulls.
regards, tom lane
---------------------------(end of broadcast)---------------------------
TIP 4: Don't 'kill -9' the postmaster
On Thu, 2004-06-10 at 17:03, Uwe C. Schroeder wrote: -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On Thursday 10 June 2004 08:21 am, mike wrote: I have set up a FK as follows
ALTER TABLE lk_sub_con ADD FOREIGN KEY (type) REFERENCES
lk_sort_of_cont act(type_code);
However when I do this
INSERT INTO lk_sort_of_cont act (type_code) VALUES ('1') (ie: a NULL into
the FK) it works
this should have said
INSERT INTO lk_sub_con (sub_cat) VALUES ('1') (ie: a NULL into
the FK) it works ie: a NULL in type
(wrong copy) Is this a bug?
No.
you have a table lk_sub_con. That table has the foreign key assigned.
This means it doesn't matter what you put into lk_sort_of_cont act , it matters
what you put into lk_sub_con.
The foreign key says something like
"If you put a value into field type of table lk_sub_con, the same value must
be existant in table lk_sort_of_cont act field type_code"
Try to add a null value to lk_sub_con.type - or any value that's not in
lk_sort_of_cont act. Postgres will throw an error.
this is the problem - it doesnt if I put a null in (the refernced column
has no nulls)
If you don't want nulls in the referenced table lk_sort_of_cont act you have to
define that there. Maybe you make the field type_code unique or the primary
key.
It is UC
For info
SELECT type_code FROM lk_sort_of_cont act; type_code
----------- 3 6 5 1
2
4
7
9
8
10
11
12
13
14
16
17
20
21
SELECT * FROM lk_sub_con;
sub_id | type | sub_cat | scat_desc
--------+------+---------+-----------
1 | | 1 |
2 | | 20 |
3 | 21 | 22 |
(after the above FK & INSERT)
- -- Open Source Solutions 4U, LLC 2570 Fleetwood Drive
Phone: +1 650 872 2425 San Bruno, CA 94066
Cell: +1 650 302 2405 United States
Fax: +1 650 872 2417
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.3 (GNU/Linux)
iD8DBQFAyIY4jqG XBvRToM4RArWZAJ wLGsUpEwCgPTybC bmkIE52op1fmwCf Wrfl
44hCrMlGYIaL8Av TXzeR7VI=
=yMO4
-----END PGP SIGNATURE-----
---------------------------(end of broadcast)---------------------------
TIP 1: subscribe and unsubscribe commands go to ma*******@postg resql.org
---------------------------(end of broadcast)---------------------------
TIP 8: explain analyze is your friend
On Thu, 2004-06-10 at 17:03, Uwe C. Schroeder wrote: -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On Thursday 10 June 2004 08:21 am, mike wrote: I have set up a FK as follows
ALTER TABLE lk_sub_con ADD FOREIGN KEY (type) REFERENCES
lk_sort_of_cont act(type_code);
However when I do this
INSERT INTO lk_sort_of_cont act (type_code) VALUES ('1') (ie: a NULL into
the FK) it works
this should have said
INSERT INTO lk_sub_con (sub_cat) VALUES ('1') (ie: a NULL into
the FK) it works ie: a NULL in type
(wrong copy) Is this a bug?
No.
you have a table lk_sub_con. That table has the foreign key assigned.
This means it doesn't matter what you put into lk_sort_of_cont act , it matters
what you put into lk_sub_con.
The foreign key says something like
"If you put a value into field type of table lk_sub_con, the same value must
be existant in table lk_sort_of_cont act field type_code"
Try to add a null value to lk_sub_con.type - or any value that's not in
lk_sort_of_cont act. Postgres will throw an error.
this is the problem - it doesnt if I put a null in (the refernced column
has no nulls)
If you don't want nulls in the referenced table lk_sort_of_cont act you have to
define that there. Maybe you make the field type_code unique or the primary
key.
It is UC
For info
SELECT type_code FROM lk_sort_of_cont act; type_code
----------- 3 6 5 1
2
4
7
9
8
10
11
12
13
14
16
17
20
21
SELECT * FROM lk_sub_con;
sub_id | type | sub_cat | scat_desc
--------+------+---------+-----------
1 | | 1 |
2 | | 20 |
3 | 21 | 22 |
(after the above FK & INSERT)
- -- Open Source Solutions 4U, LLC 2570 Fleetwood Drive
Phone: +1 650 872 2425 San Bruno, CA 94066
Cell: +1 650 302 2405 United States
Fax: +1 650 872 2417
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.3 (GNU/Linux)
iD8DBQFAyIY4jqG XBvRToM4RArWZAJ wLGsUpEwCgPTybC bmkIE52op1fmwCf Wrfl
44hCrMlGYIaL8Av TXzeR7VI=
=yMO4
-----END PGP SIGNATURE-----
---------------------------(end of broadcast)---------------------------
TIP 1: subscribe and unsubscribe commands go to ma*******@postg resql.org
---------------------------(end of broadcast)---------------------------
TIP 8: explain analyze is your friend
On Thu, 10 Jun 2004, mike wrote: On Thu, 2004-06-10 at 17:03, Uwe C. Schroeder wrote: Try to add a null value to lk_sub_con.type - or any value that's not in
lk_sort_of_cont act. Postgres will throw an error.
this is the problem - it doesnt if I put a null in (the refernced column
has no nulls)
NULLs in a referencing column are a special case in the spec. For a
single column key, a NULL is considered to pass the constraint. For
multiple column keys it depends on the match type.
---------------------------(end of broadcast)---------------------------
TIP 7: don't forget to increase your free space map settings This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: Paul Mateer |
last post by:
Hi,
I have been running some queries against a table in a my database and
have noted an odd (at least it seems odd to me) performance issue.
The table has approximately 5 million rows and includes the following
columns:
DocID (INTEGER, PRIMARY KEY, CLUSTERED)
IsRecord (INTEGER, NONCLUSTERED)
|
by: George Hester |
last post by:
Please take a look at this google artcle:
http://groups.google.com/groups?hl=en&lr=&frame=right&th=55d6f4b50f5f9382&seekm=411f370d%241%40olaf.komtel.net#link9
The op was having trouble with access denied using resizeTo. I am having the same issue
but the explanations in this article don't seem to apply here. I am not trying to
resize a window with content from a different server. This issue lies here.
What I do is make a popup...
|
by: Anthony Cuttitta Jr. |
last post by:
We have an application that outputs several different graphs from data
downloaded from our AS400. The application has worked without (this)
issue for several months now, but just recently, the workstation it is
normally run from has been upgraded to WinXP from WinNT 5.0.
The issue is that the graphs will either display the data within the
recordsource (a query), OR it will display the "temp" data in the
chart's datasheet (from initial...
|
by: Kevin Spencer |
last post by:
Hi all,
I am working on a service that uploads METAR weather information to the
National Weather Service FTP site. The service I'm authoring is hosted on a
Windows 200 server, and the NWS FTP host is on a Unix server. I'm using the
FtpWebRequest and FtpWebResponse classes to do the file uploading. I have
tested it without any errors at all uploading to an IIS FTP server hosted on
our network Most of the time it uploads without error to...
|
by: Ben Rush |
last post by:
Hello World,
Okay, I have spent the day browsing the newsgroups and reading up on
article after article concerning ViewState corruption and so forth, and I
have a couple questions. We intermittantly get the following exception -
EXCEPTION MESSAGE:
The viewstate is invalid for this page and might be corrupted.
STACK TRACE:
| | |
by: Robert |
last post by:
I have a series of web applications (configured as separate applications) on
a server.
There is a main application at the root and then several virtual directories
that are independant applications.
I am testing an upgrade of all of the sites and have converted the main root
site...although not necessarily fixed any issues.
I move on instead and converted one of the virtual roots that is a seperate
|
by: Charles Leonard |
last post by:
I am having yet another issue with Windows Server 2003. This time, the web
service (a file import web service) appears to run except for one odd
message: "ActiveX component can't create object". There are no other
statements to indicate what object cannot be created. Otherwise, everything
on the test Windows Server 2003 works fine—all import data updates correctly.
Unfortunately, my normal development environment is not Windows...
|
by: Paul |
last post by:
Hi,
I've been struggling with this today, I'm developing a DotNet2.0 website in C# that needs to call a long running data query. Obviously this is a good candidate for an Asynchronous call, so the page can carry on rendering whilst the call is taking place and also returning the ASP.NET worker thread to service another page request (for scalability). I have developed a very basic asynchronous object (for testing, that reproduces the same...
|
by: AlekseyUS |
last post by:
Hi, I'm a little stuck,
I basically need to copy all the information within a specific file in Temp and append it to a file in another location.
I'm not having any problems with smaller size log files stored within temp foldier and everything reads and appends perfectly, however when i try to read and append from IS12Install.log file in Temp all it appends to my destination file is:
ÿþ=
and a whole bunch of empty lines
I believe...
|
by: SAL |
last post by:
Hello,
I'm trying to include a popup in the ItemTemplate of a gridview row. The
ItemTemplate for the field contains a textbox and when the user clicks in
the textbox I want a popup panel to show allowing the user to make a
selection from the popup window. I have enabled AJAX extensions and have a
working sample outside of a gridview. However, when I click in the textbox
of a gridview row, all I see is a really small square instead of the...
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
| | |
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
| | |
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
| |
