Trigger only after commit

I should execute some logic every time when some insert, update or delete is happened on table.
The only save way to do that is with trigger. But In case there is transaction I would like to execute it outside and after transaction.
Is it possible to say that trigger on table is executed after some transaction is committed?
(and if transaction is rolled back it is not executed).
br, Simon

Ganesh, do you have some example or web url of first point, it looks interesting.
Output class - what do you mean with change behaviour of transaction?
I have 2 scenario.
One is that i would like to execute(if possible in different thread) some logic every time, when specific table has changed rows(Insert,Update,Delete).
(currently I'm using service broker if I want async processes in different thread)
If this changes are executed as part of some outer transaction, I would like to execute this logic only if transaction is committed. (otherwise why calculate something what will not exists).
Since this data are not critical, they can be calculated outside of current thread for performance reasons(asynch) - and it would be out of transaction scope anyway.
Since I don't know all places from where table is changed the trigger is the only way to guarantee that this logic will be always executed.
For second scenario i will prepare some case with test data in next days.
br, Simon

Similar Messages

After Commit Trigger

Does Oracle have an trigger that will fire only after you have issued a commit on an insert and/or update?

What is INSERT ALL lacking in your case?An interesting suggestion CD. What I would like to do is this ...
INSERT INTO master (id, col1, col2) VALUES (pk_seq.nextval, 'APC', sysdate)
       INTO child (id, fk_col, col23, col25) VALUES (ano_seq.nextval, pk_seq.currval, 'Tooting', 'London')
/as a single statement that doesn't require deferred constraints.
So yes I can frig INSERT ALL to do something similar but the syntax must be in the format INSERT ALL INTO ... SELECT ... FROM .
SQL> INSERT ALL
2          INTO master (id, col1, col2)
3          VALUES (pk_seq.nextval, 'APC', sysdate)
4          INTO child (id, fk_col, col23, col25)
5          VALUES (ano_seq.nextval, pk_seq.currval, 'Tooting', 'London')
6 SELECT * FROM dual
7 /
2 rows created.
SQL> select * from master
2 /
        ID COL1       COL2
         5 APC        08-NOV-06
SQL> select * from child
2 /
        ID     FK_COL COL23                COL25
         5          5 Tooting              London
SQL> Cheers, APC

Error inserting data after creating a trigger (caused by commit)

Hi,
I have registered a schema so that XML files are stored in a table XMLREADINGS. I create an AFTER INSERT tigger on this table. The trigger is very basic (inserting the system date into a test table). I discovered that it works fine so long as there is no COMMIT statement in the trigger (an implicit commit is carried out). However if I have a COMMIT then creation of the trigger is fine, but when I try to drop new XML files into the repository (using WebDav) I get a file copy error.
For this simple case the lack of an explicit COMMIT statement is okay, but I want to increase the logic of the trigger and I can imagine that there will be COMMIT and ROLLBACK statements required.
Has anyone experienced this before ?
regards
Stephen

I've just discovered that you aren't supposed to use commit or rollback in triggers anyway!
A possible solution (found on this forum) is to declare the trigger as a autonomous transaction:
If you are using Oracle 8i, you can use an autonomous transaction:
CREATE OR REPLACE TRIGGER trg
DECLARE
Pragma Autonomous_Transaction
BEGIN
I'll give that a try

Refresh only current row after commit, when ChangeEventPolicy set to none

Hi,
I'm using jdeveloper 11.1.2.3.0
I'm editing a table with a popup, I set the ChangeEventPolicy to none because it made some problems.
Now I would like to know, when i'm closing the popup and doing commit,
how could I refresh only the current row, and not whole the table?
I would like it to work as with ChangeEventPolicy set to ppr.
Thanks!

could you please explain a little bit more?
When I used the ChangeEventPolicy with ppr it looks like only the selected row was changed after commit.
but with PartialTrigger i see that it's refreshing all the table.
are you sure they are working the same?
what about row.refresh(..), is it only used for rollback?

After commit current row is no longer highlighted

JDeveloper 11.1.1.20.
Scenario: a master detail page where master and detail are both ordinary ADF table ( NOT read-only).
If I place the cursor on a master row and do a click the row is highlighted.
If I do a createInsert operation (with a button) a new row is created above the previous mentioned row.
Problem:
If I do a commit after the new row is filled with data sometimes the newly made row is now longer highlighted after the commit.
The newly created row is stil active. This is seen by the fact that if I subsequently creates a new deatil row it is correctly connected to the newly created master row.
And - after the newly created detail row is created the master row is again highligted.
Any ideas?
Best regards
Erik

Hi,
To keep highlight the selected row do some operation in bean ,Get selected row and set that row again after commit
Check
http://jobinesh.blogspot.com/2011/01/declaratively-setting-current-row-key.html

How to re-trigger BA00 after sales order has been rescheduled

Dear Gurus,
Could you please kindly advise how I could re-trigger BA00 after sales order has been rescheduled?
The scenario is following:
When the sales order was completed, the order confirmation output has been sent to the customer. But later, when the ATP confirmed quantity was changed or order was rescheduled, the committed delivery date has been changed. It caused confusion, because in the order confirmation letter we sent to customer, there is a different date.
I'd like to also trigger BA00 to resend the order confirmation, but I checked the output routine, it only checks if the order is completed or not. Shall I　ask ABAPer to add additional logic in the routine or there is other easier way to re-trigger BA00?
Many thanks in advance!

Have you allowed multiple issue for BA00 output type? In that case, you can manually trigger it from VA02. If you are trying to have it sent automatically, then add the logic into the routine.

Display item only after process ran

Hi,
I have 3 items:
- :P1_ENTERED_VALUE (Text field)
- :P1_DEFAULT_VALUE (Display as Text)
- :P1_DIFF_VALUE (Display as Text)
Users enter a value into :P1_ENTERED_VALUE and trigger a process with a button.
The process compares the number of :P1_ENTERED_VALUE with :P1_DEFAULT_VALUE and populates :P1_DIFF_VALUE. So far it works.
What I want is that :P1_DEFAULT_VALUE and :P1_DIFF_VALUE are not displayed before the button was pressed.
What I tried: Since :P1_DIFF_VALUE is null before the process, I set a condition for the item :P1_DEFAULT_VALUE:
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- Expression 1: P1_DIFF_VALUE
So both items (:P1_DEFAULT_VALUE and :P1_DIFF_VALUE) would show only after the process is executed.
The problem is that :P1_DIFF_VALUE now always shows 0 and not the difference, because the item with the condition (:P1_DEFAULT_VALUE) obviously in not just hidden before the process, but also inactive.
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Thanks in advance,
Roger

Hi Varad,
+> The calculation of P1_DIFF_VALUE should be done using the hidden-item into which you retieved the 'default value'.+
No, the calculation still had used the not hidden item.
+> The hidden-item should not be conditional.+
This was true.
I changed the calculation to use the hidden item and now it works fine !!
Thanks a lot, Varad, my appreciation.
Roger
PS: I anyone knew why the JavaScript API didn't work I still would be interested. Just to learn sth. for next time.
Thanks

Changing a Record to Read-Only after an event.

I have a Developer application that needs to be modified. This
application includes several fields as well as a comments
field. I'd like to change all updatable fields (not to included
the comments field) to READ-ONLY after a certain event. Then
after a certain date, I'd like to make the comments field READ-
ONLY.
Do you have any suggestions?
Regina Grimes
919/874-3140
null

Dear Regina,
Have you tried to set_block_property in pre-record trigger to update allowed/not allowed depending on the event. And in post-record update not allowed. These triggers must be on block level. Also on item level to the item 'Comment' define pre-item trigger where take a new decision whether you want to open the entire block or not, the same way as on block level triggers. But in post-item trigger always make the entire block read-only again.
Regards
Jan Kramle

Mutating table exception on trigger with After Insert but not with before

Hi
I need to maintain some constraint on the table to have only one row for values of the columns but not by primary key constraint.
Because in case of primary key the insert would fail and the rest of the operation would be discontinued, I cannot change in the somponent that inserts the row so I have to prevent that on the table I have.
I created a before insert trigger on the table which checks if any row exists in the table with same column values as the one being inserted. if found I delete the rows and let the insert happen (w/o raising any error). if the rows do not exist then the insert shall be continued.
I read at place that modifying the dame table in the trigger body shall raise a mutating table exception, but I donot get the exception when the trigger is fired.
Just when I change the trigger to after insert trigger then the nutating table exception is thrown.
Is it the right behavior i.e. the Before insert trigger does not raise the exception and only after insert does that, since I could not find the example for before insert triggers throwing such exception so I think it is better to confirm it before finalizing the implementation.
Thanks
Sapan

sapan wrote:
Hi Tubby
I cannot user unique constraint because that would raise an exception upon violation and the third party component that is inserting in the table would fail.
That component does some other tasks as well after this insert and if an exception is raised then those tasks would not be performed.
Also I cannot change the component to ignore this exception.Well then, you're in a bit of a pickle.
I'm guessing the trigger you have been working on isn't "safe". By that i mean that it doesn't account for multi-user scenarios. You'll need to serialize access to the data elements in question and implement some sort of locking mechanism to ensure that only 1 session can work with those values.
After you work out how to do that it sounds as though you would be better served using an INSTEAD OF trigger (you'd need to implement this on a view which is made off of your base table).
Here's one way you can work on serializing access to your table on a relatively fine grained level (as opposed to locking the entire table).
Re: possible to lock stored procedure so only one session may run it at a time?
Cheers,

A way to change metrics to 1 digit after comma?

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Iterator refresh after commit

Hi,
I have three tabs in my page , and in each tab , i have separate taskflows.
The first tab taskflow contains a jsff which has lets say master table iterator i.e departments iterator.
In the second tab, i have a table based on read only query, but when i click on add button, i will be inserting in to detail VO (employee VO) and using postChanges() .
so that read-only query based table gets the new data.
now when i click on save button and commit , the iterators in taskflows of tab1, tab2 are pointing to first record rather than the current record.
1) even i tried with having an action for the 'save' button and navigating to method activity which sets the iterator to current row.
When i am returning back to taskflow,i am still seeing the iterator pointing to first record rather than the current record i intend to see.
could anybody tell me why iterator is pointing to first row after commit()
i don't have 'refresh' -- if needed for taskflows. its default.
for transactions, datacontrols, its default for my taskflows.

I generally retain the previously selected row using the following code in my VOImpl after every executeQuery().
public void executeQuery()
// current row key if any
Key currentRowKey = null;
Row currentRow = getCurrentRow();
if ( currentRow != null )
// get current row key
currentRowKey = getCurrentRow().getKey();
// super call
super.executeQuery();
if ( currentRowKey != null )
// set current row now using previously stored key
Row[] rows = findByKey( currentRowKey, 1 );
if ( rows != null && rows.length == 1 )
setCurrentRow( rows[0]);
}

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== This happened ==
Every time Firefox opened
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The showAlertOnComplete didn't work. I downloaded and installed the download manager program and that seems to have done the trick.
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Only AFTER triggers generated afther migrating the SQLServer db to Oradb

When we migrate the SQLServer triggers in Oracle Model using the omwb only AFTER row level triggers are genereted.
Can we also generate BEFORE row level and STATEMENT level triggers from SQLServer database triggers in Oracle Model triggers?
thanks in advance,
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Daud,
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Suspicious delay of HDD activity after commit

I know that after commit Oracle LGWR process writes the data
changies into the redo-log. And Oracle must return "Commited"
only after above is done. But when I do Commit, I don't see the
HDD LED blink. Only after 1-2 sec HDD LED blinks. Is it normal?
What people have?
null

To answer the question of caching and syncing:
Linux nearly caches all and does it on a high "level", means it
is one of the reason for the good I/O-performance of linux.
In order to make sure that data is directly written to the disks
you can mount your disks with the option sync.
An example: mount -o sync /dev/sdc1 /data_1
Note, that the performance will decrease. The other possibility
is a little tool called syncer, which is a daemon that causes
linux to clear its cache every xy seconds (any value you like). I
think (because I never used) it causes some overhead but is a
good compromise to the sync-option.
Deactivating caching in the kernel... I think this is not the
best solution if you are not familiar with kernel programming.
Also think of swapping and reads on the system-disk and so on.
Dietmar
p.s: I can't remember where I've found it, so I send it to your
personal account, because I can't add any files here
StE (guest) wrote:
: Mark Malakanov (guest) wrote:
: : I know that after commit Oracle LGWR process writes the data
: : changies into the redo-log. And Oracle must return "Commited"
: : only after above is done.
: Not quite true. Information is constantly flushed from the
: in-memory redo log buffer to disc while changes are taking
place
: to the database. When a transaction is committed the
: current contents of the redo-log buffer are flushed to disc,
: followed by a marker saying "SCN was committed" is written to
: disc - the changes themselves have already been written out.
: : But when I do Commit, I don't see the
: : HDD LED blink. Only after 1-2 sec HDD LED blinks.
: : Is it normal? What people have?
: That's probably normal, but that doesn't make it a good thing.
: The Linux buffer-cache does write-behind caching, so that dirty
: buffers arn't written out to disc immediately. If there were a
: failure the write of the commit or some of the preceeding redo
: log blocks might not make it to disc.
: I think you can tune the frequency with which bdflush wakes up
: and writes to disc. Setting it to a low value if you're worried
: about consistency over performance would be a good idea.
: I don't know whether there's an open() flag to perform writes
on
: a file synchronously or not under Linux. It's possible to
sync()
: an open filehandle, I think, so perhaps Oracle does a sync on
: the active redo log when it writes out the commit.
: Anyone know anything less vague and hand-waving?
: -michael
null

Photographer's package - can i drop in and out of membership when required and if so is it only after an initial period has elapsed?

photographer's package - can i drop in and out of membership when required and if so is it only after an initial period has elapsed?

Hi there
The Photography plan is only available as an annual plan (either pay up front or paid monthly) so you'd be signing up for a year.
A month to month plan is available for Creative Cloud complete and single apps which means you don't have to commit for a certain period of time and can stop and start.
Subscription terms available here: https://www.adobe.com/misc/subscription_terms.html
Hope this helps.
Thanks
Bev

Trigger only after commit

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