Instead of Trigger with ADO

im using ole db provider 9.0.1
with mdac 2.7 on a win 2k system
db ver: 8.1.7
anyway, i have a simple view, no lob fields, all number and varchar2
and it has an instead of update, that for this example ill say it does nothing,
print a message to the output, for example, cause the bug occurs ether way.
so when i use insert on SQL plus it works fine
but when i use ADDNew with ADO it generates: ORA-22816
ive searched on otn & metalink and all i could find was a similar problem on JDEVELOP (i think)
the problem was that the add new is translated to INSERT ... RETURNING, and the RETURNING clause is
not supported by instead of updates or something like that
this is really important to me and i must find a solution.
is there a switch, attribute or a property i can set to turn off the returning clause?
or a fix in the ole db 9.2 provider?

i am also having this kind of problem. pls help
i am using OLE DB 10.2.0.1.0
i tested that if i use ADO and ms ole db provider for oracle it works fine
but when i use ADO and oracle provider for ole db, i have got the same RETURNING clause is not supported error message.
can anybody here provide me a solution or work around? tnx

Similar Messages

Instead of trigger with ADO - once again

since everyone seems to ignore my last 2 posts, i thoght of tring one more time.
before i give up the use of instead of updates and redesign the system, which really sux.
i dont understand why i can get a response from the oracle team..
do i have to open a tar for you guys to respond?
im using ole db provider 9.0.1
with mdac 2.7 on a win 2k system
db ver: 8.1.7
anyway, i have a simple view, no lob fields, all number and varchar2
and it has an instead of update, that for this example ill say it does nothing,
print a message to the output, for example, cause the bug occurs ether way.
so when i use insert on SQL plus it works fine
but when i use ADDNew with ADO it generates: ORA-22816
ive searched on otn & metalink and all i could find was a similar problem on JDEVELOP (i think)
the problem was that the add new is translated to INSERT ... RETURNING, and the RETURNING clause is
not supported by instead of updates or something like that
this is really important to me and i must find a solution.
is there a switch, attribute or a property i can set to turn off the returning clause?
or a fix in the ole db 9.2 provider?

since everyone seems to ignore my last 2 posts, i thoght of tring one more time.
before i give up the use of instead of updates and redesign the system, which really sux.
i dont understand why i can get a response from the oracle team..
do i have to open a tar for you guys to respond?Please note that the OTN forums are not official methods for receiving technical support from Oracle. Some forums happen to be monitored by folks from Oracle, but the intention of OTN is to provide a forum for engineers to communicate with other engineers. I would strongly suggest opening a TAR with Oracle support if you want to communicate with Oracle support.
Justin

Instead of Trigger Error

Hi ALL,
I am trying to create INSTEAD OF trigger on the existing VIEW, but I getting error as:-
Not found
The requested URL /apex/wwv_flow.show was not found on this server
I'm creating trigger as :-
CREATE OR REPLACE TRIGGER "trigger_name"
INSTEAD OF UPDATE ON "view_name"
FOR EACH ROW
BEGIN
UPDATE query;
UPDATE query;
END;
but when I'm writting only one update query rather two update queires in the above trigger, it is creating but not with two update queries.
Also I created another INSTEAD OF trigger on the same View as:-
CREATE OR REPLACE TRIGGER "trigger_name"
INSTEAD OF INSERT ON "view_name"
FOR EACH ROW
BEGIN
INSERT query;
INSERT query;
END;
this trigger is created without any errors than why INSTEAD OF(FOR UPDATE) trigger is not creating.... can anybody help me out with this issue.....
thxs
regards,
Kumar

Hi again,
everything is working very much fine(I mean instead of trigger with update as well as with insert) when I'm creating on apex workspace.... this is the issue with my development enviornment.... so this is the problem with development DB or something else?????
thxs
regards,
Kumar

Issue in Invoking an Updatable View with Instead of Trigger

Hi,
I am trying to insert a record using Updatable View with Instead of Trigger. When i try to save the data, i get the below error:
java.sql.SQLException: ORA-01403: no data found
ORA-06512: at line 1
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:457)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:405)
at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:889)
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:476)
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:204)
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:540)
at oracle.jdbc.driver.T4CCallableStatement.doOall8(T4CCallableStatement.java:213)
at oracle.jdbc.driver.T4CCallableStatement.executeForRows(T4CCallableStatement.java:1075)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1466)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3752)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3887)
at oracle.jdbc.driver.OracleCallableStatement.executeUpdate(OracleCallableStatement.java:9323)
at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeUpdate(OraclePreparedStatementWrapper.java:1508)
at weblogic.jdbc.wrapper.PreparedStatement.executeUpdate(PreparedStatement.java:172)
at oracle.jbo.server.OracleSQLBuilderImpl.doEntityDML(OracleSQLBuilderImpl.java:432)
at oracle.jbo.server.EntityImpl.doDMLWithLOBs(EntityImpl.java:8566)
Can someone help me resolve this issue?
Also it would be great if you can share Sample codes for Invoking an updatable view with instead of trigger on Save/commit.
Regards,
Jeevan

As a trigger is executed in the db and not in your app it's really hard to help as you did not give any useful information.
Have you read this blog http://stegemanoracle.blogspot.com/2006/03/using-updatable-views-with-adf.html ?
Timo
Edited by: Timo Hahn on 22.09.2011 09:15
And my friend google also found http://technology.amis.nl/blog/1447/adf-business-components-resfresh-after-insertupdate-and-instead-of-triggers

Insert order by records into a view with a instead of trigger

Hi all,
I have this DML query:
INSERT INTO table_view t (a,
                          b,
                          c,
                          d,
                          e)
      SELECT   a,
               b,
               c,
               d,
               e
        FROM   table_name
    ORDER BY   dtable_view is a view with an INSTEAD OF trigger and table_name is a table with my records to be inserted.
I need the ORDER BY clause because in my trigger i call a procedure who treat each record and insert into a table, used in the view. I need to garantee these order.
If i put an other SELECT statement outside, like this:
INSERT INTO table_view t (a,
                          b,
                          c,
                          d,
                          e)
      SELECT   a,
               b,
               c,
               d,
               e
        FROM   table_name
    ORDER BY   dIt works. But I can put these new SELECT because these query is created automatic by Oracle Data Integrator.
What I'm asking you is if there any solution to this problem without changing anything in the Oracle Data Integrator. Or, in other words, if there is any simple solution other than to add a new SELECT statement.
Thanks in advance,
Regards.

Sorry... copy+paste error :)
INSERT INTO table_view t (a,
                          b,
                          c,
                          d,
                          e)
    SELECT   *
      FROM   ( SELECT   a,
                         b,
                         c,
                         d,
                         e
                  FROM   table_name
              ORDER BY   d)I need to insert him by a D column order, because my trigger needs to validate each record and insert him. I have some restrictions. For example, my records are:
2     1     2006     M
1     2     2007 M
1     3     2007     S 2007
1     2     2007     S 2007
2     1     2009     S
2     1     2009     S
I want to insert the 'M' records first and then the 'S' records because the 'S' records only makes sense in target table is exists 'M' records
Regards,
Filipe Almeida

Issue with instead of trigger on a view

Gurus,
I have an issue with an instead of trigger on a view. The trigger is listed below. The insert and update seem to be working fine but the delete section is not.
From the application, we have a screen on which we attach images. We trigger of an insert and update when we attach images. We are using hibernate as our object relational mapping tool.
We have added some logging into the delete section but that portion of the trigger does not seem to be executing at all.
Please advise.
Thanks
Hari
CREATE OR REPLACE TRIGGER trg_vw_result_image_uid
INSTEAD OF
INSERT OR DELETE OR UPDATE
ON vw_result_image
REFERENCING NEW AS NEW OLD AS OLD
DECLARE
v_cnt number(38);
v_cnt_old number(38);
v_err_msg VARCHAR2 (250);
BEGIN
-- v_rslt_id number(38);
-- v_cnt number(38);
select count(1) into v_cnt from result_image_master
where RSLT_IMAGE_ID = :new.RSLT_IMAGE_ID;
--select count(1) into v_cnt from result_image_master
-- where ACC_BLKBR_ID = :new.ACC_BLKBR_ID
-- and upper(RSLT_IMAGE_NM) = upper(:new.RSLT_IMAGE_NM);
select count(1) into v_cnt_old from result_image_master
where RSLT_IMAGE_ID = :old.RSLT_IMAGE_ID;
insert into t2( TEXT_VAL, DT1, seq1)
values (' before v_cnt', sysdate, t6.NEXTVAL);
--if v_cnt = 0
--****INSERTING
IF INSERTING
THEN
insert into t2( TEXT_VAL, DT1, seq1)
values (' v_cnt is 0 and inserting into result_image_master', sysdate, t6.NEXTVAL);
insert into t2( TEXT_VAL, DT1, seq1)
values (' inserted bb id :'||:new.ACC_BLKBR_ID, sysdate, t6.NEXTVAL);
insert into result_image_master (
RSLT_IMAGE_ID
,RSLT_IMAGE_HBR_VER
,RSLT_IMAGE_TYPE_ID
,RSLT_IMAGE_NM
,RSLT_IMAGE_LABEL
,RSLT_IMAGE_SEQ
,RSLT_SHOW_ON_RPT
,RSLT_SLIDE_NO
,RSLT_CELL_NO
,RSLT_X_COORD
,RSLT_Y_COORD
,ACC_BLKBR_ID
,CREATED_BY
,DATE_CREATED
,MODIFIED_BY
,DATE_MODIFIED
values (
:new.RSLT_IMAGE_ID
,:new.RSLT_IMAGE_HBR_VER
,:new.RSLT_IMAGE_TYPE_ID
,:new.RSLT_IMAGE_NM
,:new.RSLT_IMAGE_LABEL
,:new.RSLT_IMAGE_SEQ
,:new.RSLT_SHOW_ON_RPT
,:new.RSLT_SLIDE_NO
,:new.RSLT_CELL_NO
,:new.RSLT_X_COORD
,:new.RSLT_Y_COORD
,:new.ACC_BLKBR_ID
,:new.CREATED_BY
,:new.DATE_CREATED
,:new.MODIFIED_BY
,:new.DATE_MODIFIED
insert into result_image_blob (
RSLT_IMAGE_ID
,rslt_image_blob
values (
:new.RSLT_IMAGE_ID
,:new.rslt_image_blob
--****UPDATING
ELSIF UPDATING
-- v_cnt > 0 --
THEN
insert into t2( TEXT_VAL, DT1, seq1)
values (' updating result_image_master', sysdate, t6.nextval);
insert into t2( TEXT_VAL, DT1, seq1)
values (' updating bb id :'||:new.ACC_BLKBR_ID, sysdate, t6.nextval);
update result_image_master
set RSLT_IMAGE_HBR_VER = RSLT_IMAGE_HBR_VER + 1
,RSLT_IMAGE_TYPE_ID = :new.RSLT_IMAGE_TYPE_ID
,RSLT_IMAGE_NM = :new.RSLT_IMAGE_NM
,RSLT_IMAGE_LABEL = :new.RSLT_IMAGE_LABEL
,RSLT_IMAGE_SEQ = :new.RSLT_IMAGE_SEQ
,RSLT_SHOW_ON_RPT = :new.RSLT_SHOW_ON_RPT
,RSLT_SLIDE_NO = :new.RSLT_SLIDE_NO
,RSLT_CELL_NO = :new.RSLT_CELL_NO
,RSLT_X_COORD = :new.RSLT_X_COORD
,RSLT_Y_COORD = :new.RSLT_Y_COORD
,ACC_BLKBR_ID = :new.ACC_BLKBR_ID
,MODIFIED_BY = :new.MODIFIED_BY
,DATE_MODIFIED = :new.DATE_MODIFIED
where RSLT_IMAGE_ID = :new.RSLT_IMAGE_ID;
update result_image_blob
set rslt_image_blob = :new.rslt_image_blob
where RSLT_IMAGE_ID = :new.RSLT_IMAGE_ID;
END IF;
IF DELETING OR v_cnt_old > 0
THEN
insert into t2( TEXT_VAL, DT1, seq1) values (' deleting rows ...', sysdate, t6.NEXTVAL);
DELETE from result_image_blob where RSLT_IMAGE_ID = :old.RSLT_IMAGE_ID;
insert into t2( TEXT_VAL, DT1, seq1) values ('deleting result_image_blob : '||:old.RSLT_IMAGE_ID , sysdate, t6.NEXTVAL);
DELETE from result_image_master where RSLT_IMAGE_ID = :old.RSLT_IMAGE_ID;
insert into t2( TEXT_VAL, DT1, seq1) values ('deleting result_image_master : '||:old.RSLT_IMAGE_ID , sysdate, t6.NEXTVAL);
END IF;
EXCEPTION
WHEN OTHERS THEN
v_err_msg := SQLERRM;
insert into t2( TEXT_VAL, DT1, seq1) values (v_err_msg, sysdate, t6.nextval);
END;
Edited by: bhanujh on Sep 13, 2010 7:55 AM

bhanujh wrote:
The error msg that we are getting is
09/08/2010 4:02:09 PM: Unable to save the results :: Could not execute JDBC batch updateSorry, we don't recognize this message as any valid Oracle error.
:p

"instead of" trigger on a view with a condition

I'm trying to create an instead-of trigger on a view but I want it all such that:
1. It fires only for a certain condition.
2. When the condition isn't met, I want the normal DML on the view to continue as it normally would.
3. I want to avoid writing as much manual DML code as possible for long-term maintainability.
My first attempt is like this:
create or replace trigger PROPOSAL_PARTS_V_IRU
instead of update on proposal_parts_v
for each row
WHEN :old.PART_MASTER_ID <> :new.PART_MASTER_ID
BEGIN
do_stuff_for_part_master_change;
END;So when the OLD and NEW PART_MASTER_IDs have changed, I want special processing. Else, I want it to do whatever it normally does (let the view get updated and the database will manage the update of the underlying table).
When compiling that I get "ORA-25004: WHEN clause is not allowed in INSTEAD OF triggers".
OK I will accept that even though I want it to work.
So my next attempt could be:
create or replace trigger PROPOSAL_PARTS_V_IRU
instead of update on proposal_parts_v
for each row
BEGIN
IF :old.PART_MASTER_ID <> :new.PART_MASTER_ID THEN
    do_stuff_for_part_master_change;
ELSE
    UPDATE proposal_parts -- Manually update the underlying table with manually-written DML but I hate having to do this in case the view or table columns change.
    SET...
    WHERE...
END;So my question is...is there any syntax to do something like this?
create or replace trigger PROPOSAL_PARTS_V_IRU
instead of update on proposal_parts_v
for each row
BEGIN
IF :old.PART_MASTER_ID <> :new.PART_MASTER_ID THEN
    do_stuff_for_part_master_change;
ELSE
    update_row;
END;...where "update_row" is some sort of built-in command that tells oracle to continue with the current update as if the trigger never existed.
Back in the day I seem to remember that Oracle Forms had a trigger and syntax like this where you could intercept a DML and if under certain conditions it wasn't true, you could say "update_row" (or maybe it was "update_record?...whatever) and it meant "continue with update as if this instead-of trigger never existed".
Is anything available like that for the DB now? I know in older versions no, but we are now on 11g...anything new come out like this?
Otherwise I have to manually write an update statement and I'd rather not if I don't need to.
Thanks!

riedelme wrote:
gti_matt wrote:
I'm trying to create an instead-of trigger on a view but I want it all such that:
1. It fires only for a certain condition.You can use IF Logic inside a trigger to do or not do anything. As long as it is a condition you can check you can code IF logic around it
2. When the condition isn't met, I want the normal DML on the view to continue as it normally would.You will have to code all of your logic in the INSTEAD of trigger. The whole purpose of the INSTEAD OF trigger is to execute INSTEAD OF performing DML on the view. There is no way to go back to the "normal DML" when the INSTEAD OF trigger exists.
You can put all of the logic you will need in the INSTEAD OF trigger and use IF conditions. Use IF logic to code both your special and "normal" processing.
3. I want to avoid writing as much manual DML code as possible for long-term maintainability.You will have to code the operative lines somewhere. Reusable functions and/or procedures in a package?Yep using an "IF" I knew about...no problem there.
But was just looking for a cheap and easy way to say (for the "else" condition) to revert to normal DML processing. Sounds like in a DB trigger there is no such syntax I guess.
This is an example from Oracle Forms, I was looking for a database equivalent of this(see http://sqltech.cl/doc/dev2000/help/fbhelp18.htm):
Built-in Subprograms for On-Event Triggers For most of the transactional On-event triggers, there is a corresponding built-in subprogram.
On-Event Trigger
Corresponding Built-in
On-Delete
DELETE_RECORD
On-Insert
INSERT_RECORD
On-Update
UPDATE_RECORD
When you call one of these built-in subprograms from its corresponding transactional trigger, Form Builder performs the default processing that it would have done normally at that point in the transaction.
For example, if you call the INSERT_RECORD procedure from an On-Insert trigger, Form Builder performs the default processing for inserting a record in the database during a commit operation.
When these built-ins are issued from within their corresponding transactional triggers, they are known as do-the-right-thing built-ins. That is, they do what Form Builder would normally have done at that point if no trigger had been present. Thus, an On-Insert trigger that calls the INSERT_RECORD procedure is functionally equivalent to not having an On-Insert trigger at all. Such a trigger is explicitly telling Form Builder to do what it would have done by default anyway.Note that the author calls them the "do-the-right-thing" built-ins. That's what I was looking for but on the DB side. Sounds like Oracle didn't come up with that (yet)?

Instead of trigger on view with CLOB data

I have writed Instead of trigger for view "article(id,text)" with CLOB
field "text".
create or replace trigger v_article_insert
instead of insert on v_article
for each row
declare
begin
insert into article(id,text) values(id,:new.text);
end v_article_insert;
When I try to do DML (insert, update), forexample:
insert into v_article(text) values('bla-bla')
I get:
ORA-25008 no implicit conversion to LOB datatype in instead-of trigger.
( Cause: When inserting or updating a view using instead-of trigger, the
new value for a LOB view column is of a different datatype.
Action: Specified a LOB value as the new value for the LOB view
column.)
insert into v_article(text) values(empty_clob()) - It works...
What does it mean and what is right syntax for DML for CLOB fields in
instead of triggers?

When inserting CLOBs you create the row with an Empty_Clob() to initialize the CLOB field. Then you can update the empty CLOB with your CLOB value.
The error message is telling you that Oracle will not convert your CLOB to the initialization value needed.

[PLEASE] Prob with instead of Trigger [URGENT !]

Hi,
I have an INSTEAD OF TRIGGER on a view which update 2 based tables.
Each time the user update information,the system processes the update operation and insert a new row into the base tables.None of the based tables has any trigger.
Why this insertion occures ? How can i stop it and update only the based tables without inserting the same row ?
Thks for your advice
lamine
SQL> CREATE OR REPLACE TRIGGER UPDATE_PP_TR
SQL>       INSTEAD OF UPDATE ON V_CONTACTS1_PP
SQL>       FOR EACH ROW
SQL>       begin
SQL>         update ORGANIZATIONS
SQL>         set
SQL>           org_name = nvl(:new.org_name,org_name)
SQL> .....
SQL>           ,updated_by = v('USER')
SQL>           ,updated_date = sysdate
SQL>         where org_id = :new.org_id;
SQL>         update INDIVIDUALS
SQL>         set
SQL>           ,gender = nvl(:new.gender,gender)
SQL>           ,first_name = nvl(:new.first_name,first_name)
SQL>           ,last_name = nvl(:new.last_name,last_name)
SQL> ......
SQL>           ,updated_by = v('USER')
SQL>           ,updated_date = sysdate
SQL>          where org_id = :new.org_id;
SQL>        end UPDATE_PP_TR;

Thks Andrew for your reply,
The INSTEAD OF trigger doesn't insert new row as i said before.... apologies.... It processes 2 things:
- update the field with the new value (what i want)
- Replace any existing data that has the same reference_key by the new value.
If we change the email of an individual and it happens that they are many people in the same company,then the INSTEAD OF TRIGGER updates the email and replace the other employees records by the one that has been updated.
But if the company employes only 1 person then the process is ok.It's bizarre only for many employees in the same company.
i.e:
Martin Tom , [email protected], FRANCE SOFT
Paul Henri, [email protected], FRANCE SOFT
Jason Case, [email protected], FRANCE SOFT
If i update Martin Tom's email to [email protected], Paul and Jason would be replace by Marin Tom's record....
Martin Tom , [email protected], FRANCE SOFT
Martin Tom , [email protected], FRANCE SOFT
Martin Tom , [email protected], FRANCE SOFT
Maybe my instead of trigger is written improperly.....
Any advise ?

Big Problem with Instead Of Trigger

I have following problem: I created my own user-table where I want to store some
attributes like user-foto etc... This table I join with the HTMLDB
wwv_flow_fnd_user (I gave myself the select grant on it) in a view
On the view I created an INSTEAD-OF-Trigger for DELETE-Operations where I delete
only my user-table. But when I execute it it gives me an
ORA-01031: insufficient privileges
I can not understand it.
<pre>
===========================================================
SQL*Plus: Release 10.2.0.1.0 - Production on Tue Sep 27 05:28:13 2005
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL> DROP TABLE my_users
2 ;
Table dropped.
SQL> CREATE TABLE my_users AS
2 SELECT user_id
3 FROM flows_020000.wwv_flow_fnd_user
4 ;
Table created.
SQL> ALTER TABLE my_users ADD my_attr VARCHAR2(10);
Table altered.
SQL> ALTER TABLE my_users ADD CONSTRAINT pk_my_users PRIMARY KEY( user_id );
Table altered.
SQL> CREATE OR REPLACE VIEW v_my_users
2 AS
3 SELECT u2.user_id,
4 u.user_name,
5 u.first_name,
6 u.last_name,
7 u2.my_attr
8 FROM flows_020000.wwv_flow_fnd_user u,
9 my_users u2
10 WHERE u2.user_id = u.user_id
11 ;
View created.
SQL> CREATE OR REPLACE TRIGGER trg_del_v_my_users
2 INSTEAD OF DELETE ON v_my_users
3 FOR EACH ROW
4 BEGIN
5 DELETE my_users
6 WHERE user_id = :OLD.user_id
7 ;
8 END;
9 /
Trigger created.
SQL> DELETE v_my_users WHERE 1=2
2 ;
DELETE v_my_users WHERE 1=2
ERROR at line 1:
ORA-01031: insufficient privileges
===========================================================
</pre>
And: If there is no PK on table my_users I got not error!
Can anybody explain it?
And: How can I include my listings in the forum with courier font?

Is the primary key in this table referencing any table(s) in other schema? How should this work?
Look at the script above:
ALTER TABLE my_users ADD CONSTRAINT pk_my_users PRIMARY KEY( user_id );
Bye,
Rumburak

Form with view having instead-of-trigger gives FRM-40501 and ORA-02014

I created a data-entry from with a 'view' as datas-source block. This view gives crosstab query results with a data from a single base-table but it is complex and uses decode and aggregate funciton 'max' just to create group by in a crosstab query. I have created a instead of trigger on this view to update or insert a record in base table. A test to update base table works fine at SQl prompt. A test to insert at SQL shows '1 row created' but in fact when I query the database, it does not show newly inserted row. Also, when I compile and run this form, I get FRM-40501 and ORA-02014. Help!!!
I know that DML operations on a view with DECODE, aggregate functions or group by can not be performed but I thought the "instead of" trigger on the view to update the base table should eleminate this restriction and hence pusued further but now stuck!
BTW: I can post details of base table, view, and instead of trigger, if you want to see them to further decipher the problem. Just let me know. Thanks!
VERSIONS: Forms in developer suite v10.1.2.0.2 on Windows XP 64 bit desktop - ; Backend database: 9.2.0.8 on Windows 2003 EE server
Edited by: user8647268 on Aug 19, 2009 1:19 PM
Edited by: user8647268 on Aug 19, 2009 1:25 PM

I just forgot to ask you one question: In my experience with forms, I have captured before_value and after_value and implemented logic based on results many times. This form I am working on is kinda first multi-record form where I have a tabular page with date and about 7 other columns forming a grid of cells, which users wanted. Each line is a record from a view. I tried relying on forms to do DML on underlying table and since the underlying table is a paritioned table, I ran into FRM-40509 and ORA-00936, where returning ROWID becomes problematic. I found a note 167550.1 which says to set Key mode to 'Updateable' or 'Non-Updateable' but not 'Unique' or 'Automatic' as a solution #1. Solution#1 failed i.e. the errors persisted. The note also says in that case, implement Solution #2, which is to write explicit trigger to do each of the DML on view. Here I run into kinda problem: In a tabular form with say 31 records each row having 7 cells which is like capturing 217 before values..that is too many. Addressing them with ':old.xxx' or ':new.xxx' which works in instead of trigger, does not work in trigger inside forms. Without checking these before and after values, it inserts rows with nulls for empty cells where we wnated it to skip and do nothing. So iam looking for a way to capture before value using some kinda standard form mechanism..Do you have any suggestions! (Sorry for long explanation but that is the only way to do it..)

How to create ADF BC components like EO from "View with INSTEAD OF trigger

I have a "View with INSTEAD OF trigger" on a external schema. is it possible to create ADF EO on top of this view in my local schema?. If possible, then is it possible to insert/update that external table using ADF standard data controls and Application module?. I'm trying to see if it's possible with standard ADF controls without calling pl/sql API to insert/update that external table. any ideas are appreciated.
Regards,
Surya

http://stegemanoracle.wordpress.com/2006/03/15/using-updatable-views-with-adf/

View with Instead of Trigger - ORA-01031

I am having trouble with a form based on a view that uses an instead of trigger.
When I attempt to update a complex view that uses instead of triggers in an APEX form, I get the following message:
ORA-20001: Error in DML: p_rowid=21388, ... ORA-01031: insufficient privileges
The view works correctly when updates are executed from SQL Plus.
The view "VW" is based on several tables in the application schema "X", which is parsed by APEX, and several tables in another schema "Z". I have explicitly granted select permission on the tables in schema "Z" to schema "X", but this doesn't resolve the error.
Any idea how to fix this problem? From reading other posts, it sounds like the only issue should be explicit grants on the tables in other schemas. I do not attempt to update the tables in schema "Z", and do not have update permissions to those tables.
Sinerely, Justin

Justin,
you might try to grant the views to the FLOWS_xxxxx user, which performs the Apex processes.
Dik Dral

Issue with Instead of Trigger

Hi everyone,
I have a view v_test . Created one instead of trigger over it. When I try to insert over the view it is throwing an error like' ORA-00036: maximum number of recursive SQL levels (50) exceeded' . Please help me how to over come from this.
Please find the below DDL Stmts;
CREATE TABLE test (id NUMBER,
name VARCHAR2(10 CHAR),
sal NUMBER,
dept_id NUMBER);
CREATE OR REPLACE VIEW v_test
IS
SELECT * FROM test;
Trigger Code:
CREATE OR REPLACE TRIGGER TR_V_TEST
INSTEAD OF INSERT ON V_test
FOR EACH ROW
BEGIN
INSERT INTO V_test VALUES(107,'VEERA',20000,30);
END;
Thanks in Advance !!
Thanks,
Vissu....

Vissu,
One and main scenario of mutating table error is depicted by your code only. You have created instead of Insert Trigger on view, within which again you are trying to insert on the same view i.e. you are trying to perform DML on a view which is already under transition state.
Actually, Oracle tries hard to do the task. No of attempts is the value specified for "session_cached_cursors" (which is 50 here), but fails finally to recognise the table/view state, so throws the exception ORA-00036.
In your case, instead of trigger was not required. You must understand the purpose of Instead of triggers. They are used when Multiple Tables build a view, and a DML on the view required data insertion in multiple tables. In above case, only one table is involved, so instead of trigger is not required. DML on your view can insert only in TEST table.
But in above case, handle this by avoiding the DML(Insert) on the view inside the instead of insert trigger.
Your purpose by insert on the view is to insert into TEST table only. So inside Instead of trigger,you can directly insert into table.
Hope it is clear now !!

View-Update in forms with Instead-Of trigger

I has created a view and an Instead-Of trigger on that view.
Now, I want to update this view in FORMS 6. I am unable to update this view and getting error FRM-40602.
Is there any way to update this view updatable in FORMS6 or FORMS6 has not this feature?

Hi,
This has been acknowledged by Oracle as bug earlier. The work-around for this is as follows:
1. Create table 1
2. Create table 2
3. Create view
4. Create instead of insert trigger on view
5. Create instead of update trigger on view
6. Now, in the forms, go to the Block property
7. Look for the 'Key mode' property. By default it is 'Automatic'. Set it to Updateable (If your database design supports updating primary keys) or Unique (preferable).
8. Now run the form. It should work.
All the best.
Sunil Kumar G S

Instead of Trigger with ADO

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