Can primary key be changed?

Hi all,
I found that if primary key is changed, the SQL statement generated is strange. For example, I have an object A, with primary key = 12345. In the UoW, I update the primary key to 1000. The SQL statement generated would be something like "UPDATE A SET PK = 1000 WHERE (PK = 1000)". Is it the expected behaviour of toplink?
Thanks and regards,
William.
PS: Proxy in direction is for object A. Would it tbe cause of the strange behaviour?

Primary keys cannot be changed.
Primary keys are used to maintain the identity of objects. Changing the primary key would change the identity.
If you need to change a primary key field, the best thing to do is delete the original object and insert a new object with a new primary key and other fields copied as appropriate.

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IR - if count (primary key) cannot change to count different column

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Thanks,
Nick.

I've tried this in 4.1.0.00.32: works normally. In 4.1.1.00.23 however i'm getting the weird behaviour: you can count on any column, but the moment you count the same column as the one grouped on you can not change the column back to another one anymore. Something which works fine in 4.1.0.00.32.

Another user has changed the row with primary key -Table changed externally

Hello,
I am facing the error: "Another user has changed the row with primary key oracle.jbo.Key[94 ]." during the delete operation.
User case scenario:
1. Added new row in the table.
2. Once new row is added to the the table, another application will update few columns in the newly added row based on some logic.
3. On the same session I am trying to delete the newly added row and getting above mentioned error.
I have added a "Button" in the table to partialRefresh the table to check the new values of the changed columns.
I have checked the forum and found many similar errors and tried the following but nothing helped.
1. By setting "Auto Refresh = True" for the view object.
Issue faced-> It worked fine but after few add and remove my db is getting to inconsistent state after which, I am not able to do any add/delete from my page.
Error: "Too many objects match the primary key oracle.jbo.Key". I have checked this and I am not getting this error when "Auto Refresh = False" even after multiple add and remove actions.
2. By Setting "Auto Refresh" the iterator associated with the page.
Issue -> Did not work at all.
Looking forward inputs from gurus.
Thanks
Abhijeet

Finally I found one solution to this problem at: [ http://www.avromroyfaderman.com/2008/05/bring-back-the-hobgoblin-dealing-with-rowinconsistentexception/|http://www.avromroyfaderman.com/2008/05/bring-back-the-hobgoblin-dealing-with-rowinconsistentexception/]
Simply overriding the lock() method in the entity object resolved issue. Kudos to the author.
Code:
public void lock() {
try {
super.lock();
} catch (RowInconsistentException e) {
refresh(REFRESH_WITH_DB_ONLY_IF_UNCHANGED | REFRESH_CONTAINEES);
super.lock();
But, Now my refresh button is not working as depend on the "Auto Refresh = True" to update the table.
Can anyone tell me how can I refresh the VO of my table from the button.
Thanks
Abhijeet.
P.S: I have already added the partial trigger but it is work not working as the data is cached in the VO. Removing the Cached property for the VO is creating other problems.

Primary key and change indicator

So I was creating an employee and then I committed the records and then I tried to delete a record from the same table. I encountered an error like below:
"Another user has changed the row with primary key"
So I searched the solution of this problem, and then I read this article https://blogs.oracle.com/onesizedoesntfitall/entry/the_case_of_the_phantom
This is the solution according to the above article:
Alternatively you can set the Change Indicator on one of the attributes. This will work as long as the relating column for the attribute in the database itself isn't inadvertently updated. In turn you're possibly just masking the issue rather than solving it, because if another developer turns the Change Indicator back on the original issue will return.*
Well, then set the Change Indicator of the EmployeeID attribute (which happens to be the primary key of the table). Now its working fine.
But my question is: Is this okay if I am setting the Change Indicator of a primary key attribute to be True?

>
Sonull wrote:
I have set the Type property of employeeID as DBSequence. So when the system creates a row, the values displayed for the employee ID is in the form of negative numbers (-1, -2, -3). Only after committing the rows does the trigger gets fired, and the next number in the sequence is generated, and the row is saved in the database.
>
I don't understand you? are you asking a question or provide information?
When set the type of an attribute to DBSequence, by default Jdeveloper sets the Refresh on Insert property.
What I want to say is that the problem is not in the EmployeeId attribute.

Can Primary Key values be empty?

Hi,
We have some custom tables created in ECC 6.
One of the tables contains the below fields.
MANDT
PERIOD
KOSTL
LSTAR
AUFNR
SOURCE
POOL
PRODUCT
.... etc.
Key/Initial Values check boxes are selected for fields in bold/italic above.(I mean primary key).
But when I check the table contents, SOURCE column contains empty values(nothing) for some records. Is that correct?
I think Primary key fields should contain some value in a record.
Please advise.
Thanks in advance.
Han

Have a look at table S001. Hopefully there is data for this table in your system. The first couple fields have initial values in my system.
Regards,
Rich Heilman

JBO-25014: Another user has changed the row with primary key oracle.jbo.Key

Hi,
I am developing a Fusion Web Application using Jdeveloper 11.1.2.1.0. I have a home.jspx page that has a ADF table built on efttBilling View Object. . When you click on one of the rows in the table, it will take you to detail.jspx where you can edit the row and save. When 'save' is clicked, stored procedures are executed to update/insert rows into few tables , and then go back to home.jspx where you need to see updated content for that row.
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b. Marked 'Refresh on Insert' , 'Refresh on Update', 'Change Indicator' checkboxes for all the attributes in the entities associated with efttBilling View Object.
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public void refresheftTransactionsforBillingAccountViewObj1View()
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Code in view scope bean
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Could anyone please provide some insight in this issue. I have been battling with this since quite some time. I can provide you with the log file too.
Thanks!
Shai.

What code does your Commit method have .. can you try using the Commit executable from the AM itself instead ?
Also -
Shai wrote:
'Change Indicator' checkboxes for all the attributes in the entities associated with efttBilling View Object.
which all attributes you set this property for . it should just be for History columns as such.
Did you also check if this could be your scenario ?
Decompiling ADF Binaries: Yet another reason for "JBO-25014: Another user has changed the row with primary key orac…
OR
JBO-25014: Another user has changed the row with primary key oracle.jbo.Key
OR
Another user has changed the row with primary key -Table changed externally
Message was edited by: SudiptoDesmukh

Primary keys and foreign keys

Hi,
is there a script available for changing the value of a primary key which automaticly
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William Oorschot

I don't have the script now. but you can make a procedure of ur own.
using a join on user_constraints, and user_cons_columns you can find out all the columns in all the tables which are referencing the particular primary key. once you have the table and the referencing columns, you can change the value of those columns with the new value.
you'll have to call this procedure from a before row level trigger.
HTH
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Hi there
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Hi
Can primary key or unique key constraint can be imposed on a View created in Oracle 9i?
Thanks in advance

Hi
Can primary key or unique key constraint can be
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Thanks in advanceNot sure whether you want to know about Materialized view or not !
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Hi all,
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Thanks for your help.vinaykotha

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-NC

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Can somebody tell me if there is such a feature in ARC32?
Or, is there is another Advantage tool to facilitate what we are trying to accomplish?
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George,
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Chris Franz

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looking for a book on SQL Server 2008 Administration?
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Can we create an APEX Form based on Table which has no Primary Key

Hi,
I have a requirement.
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Deepak_J wrote:
Hi,
I have a requirement.
I need to create a FORM based on a table having no Primary Key but it is having Unique Key . I can use Unique Key as an alternate of Primary Key.
but When I tried to create a Form, I got the following message.
Source tables for forms and tabular forms must have a primary key
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Can primary key be changed?

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