How to update a parent (primary key) value?

hello...can anybody give me a hint that how to update a primary key value in master table through forms as well as update all child records keeping in mind that "ALTER TABLE" and constraint disabling is not permitted by DBA. Parent Records are being displayed in form in a database block while child records are not displayed on form.

See
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:914629004506
and
http://tkyte.blogspot.com/2009/10/httpasktomoraclecomtkyteupdatecascade.html
cheers

Similar Messages

How can we export the Primary key values (along with other data) from an Advantage database?

One of our customers is moving from our application (which uses Advantage Database Server) to another application (which uses other database technology). They have asked us to help export their data, so that they can migrate it to another database system. So far, we have used the Advantage Data Architect (ARC32) "Export Table Structures as Code" functionality to generate SQL. We used the "Include existing data" option. The SQL contains the necessary code to recreate the tables and indexes. The customer's IT staff will alter the SQL statements as necessary for their new system.
However, there is an issue with the Primary Keys in these table. The resulting INSERT statements use AutoInc as the type for the Primary Key in each Table. These INSERT statements contains "DEFAULT" for the value of each of these AutoInc fields. The customer would like to output an integer value for each of these Primary Key values in order to maintain referential integrity in their new system.
So far, I have not found any feature of ARC32 that allows us to export the Primary Key values. We had been using an older version of ARC32, since our application does not use the latest version of ADS. I did download the latest version of ARC32 (11.10), but it does not appear to include any new functionality that would facilitate doing this sort of export.
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?
If there are no Advantage tools to provide such functionality, what else would you suggest?

George,
It sounds like the approach you are using is the correct one. This seems to be the cleanest solution to me especially since the customer is able to modify the generated SQL statements for their new system.
In order to preserve the AutoInc values I would recommend altering the table and changing the field datatype from AutoInc to Integer. Then export the table as code which will export the actual values. After the tables have been created on the new system they can change the field datatype back to an AutoInc type if necessary.
Regards,
Chris Franz

How to update data when primary key is set through for update cursor

Dear friends,
I have tried to update data in the table through forms using cursor for update and i have given the plsql i have used please help me where i do mistake.
DECLARE CURSOR EMP IS
SELECT EMPNO,EMPNAME,FATHERNAME,COMMUNITY,SEX,BILLUNIT,BIRTHDATE,RLYJOINDATE,RETIREMENTDATE
FROM PRMAEMP WHERE BILLUNIT=:CTRL.BILLUNIT AND SERVICESTATUS='SR'ORDER BY DESIGCODE,SCALECODE
FOR UPDATE;
BEGIN
GO_BLOCK('EMP_DETAILS');
SYNCHRONIZE;
FOR I IN EMP
LOOP
I.BILLUNIT:=:EMP_DETAILS.BILLUNIT;
I.EMPNO:=:EMPNO;
I.EMPNAME:=:EMPNAME;
I.FATHERNAME:=:FATHERNAME;
I.COMMUNITY:=:COMMUNITY;
I.SEX:=:SEX;
I.BIRTHDATE:=:BIRTHDATE;
I.RLYJOINDATE:=:RLYJOINDATE;
I.RETIREMENTDATE:=:RETIREMENTDATE;
DOWN;
END LOOP;
COMMIT;
END;
your help is needed immediately

DECLARE CURSOR ABC IS
   SELECT EMPNO,
          EMPNAME,
          FATHERNAME,
          COMMUNITY,
          SEX,
          BILLUNIT,
          BIRTHDATE,
          RLYJOINDATE,
          RETIREMENTDATE
FROM PRMAEMP
WHERE BILLUNIT=:CTRL.BILLUNIT
AND SERVICESTATUS='SR'
ORDER BY DESIGCODE,SCALECODE
FOR UPDATE OF COMMUNITY;
V_EMPNO           PRMAEMP.EMPNO%TYPE;
V_EMPNAME         PRMAEMP.EMPNAME%TYPE;
V_FATHERNAME      PRMAEMP.FATHERNAME%TYPE;
V_COMMUNITY       PRMAEMP.COMMUNITY%TYPE;
V_SEX             PRMAEMP.SEX%TYPE;
V_BILLUNIT        PRMAEMP.BILLUNIT%TYPE;
V_BIRTHDATE       PRMAEMP.BIRTHDATE%TYPE;
V_RLYJOINDATE     PRMAEMP.RLYJOINDATE%TYPE;
V_RETIREMENTDATE PRMAEMP.RETIREMENTDATE%TYPE;
BEGIN
   GO_BLOCK('EMP');
   SYNCHRONIZE;
   OPEN ABC;
   LOOP
      FETCH ABC INTO .... /*yOU NEED TO MENTION YOUR VARIABLES HERE*/;
      UPDATE PRMAEMP
      SET BILLUNIT= :EMP.BILLUNIT,
          EMPNO= :EMPNO,
          EMPNAME= :EMPNAME,
          FATHERNAME= :FATHERNAME,
          COMMUNITY= :COMMUNITY,
          SEX= :SEX,
          BIRTHDATE= :BIRTHDATE,
          RLYJOINDATE= :RLYJOINDATE,
          RETIREMENTDATE= :RETIREMENTDATE
      WHERE CURRENT OF ABC;
      EXIT WHEN ABC%NOTFOUND;
   END LOOP;
   CLOSE ABC;
END;
COMMIT;
END;Cheers
Sarma.

How to get the auto increment integer primary key value of a new record

I have a DB table that has a auto increment integer primary key, if I insert a new record into it by SQL statement "INSERT INTO...", how can I get the integer primary key value of that newly created record?

Well maybe someone knows a better method, but one workaround would be to add a dummy field to your table. When a new record is inserted this dummy field will be null. Then you can select your record with SELECT keyField FROM yourTable WHERE dummyField IS NULL. Once you've got the key number, you then update the record with a non-null value in the dummyField. Bit of a bodge, but it should work...
Another alternative is, instead of using an Autonumbered key field, you could assign your own number by getting the MAX value of the existing keys (with SELECT MAX(keyField) FROM yourTable) and using that number + 1 for your new key. Might be a problem if you have lots of records and frequent deletions though.

How to Create process of Type : Get Next or Previous Primary Key Value

Hi,
Can anybody give the steps how to create the page process for type Get Next or Previous Primary Key Value in oracle Express database
Ramesh j c.

Hi Justin,
In oracle 10g XE , we have sample application v2.0
1. Do you have any Document to create step by step the sample application v2.0 and Is it possible to create all the pages of this sample application v2.0 b by wizard. To recreate or create the demo app, start from the home area,
next go to application builder,
then click the create button,
next choose "demonstration application"
and then you can choose "Run | Edit | Re-install" the "Sample Application" along with a few other apps.
2. When we install this sample application v2.0 , which is the sql script is executed or how it is installed. If you want the sample application you can export it after you create it if you want the SQL associated with it.
3. Whenever the sample application v2.0 is installed, how the encrypted pass word is created for the user demo and admin. This is setup with the application install. I don't believe it is encrypted either. If your wanting SSL there are some threads on here that talk about encrypting content.
Justin thanks for to create process Get Next or Previous Primary Key Value

Apex Form - how to enter primary key value manually?

Hi
Whenever I am creating Apex form using wizard, it asks me to specify trigger/sequence/pl/sql function for populating primary key value.
However, if I want to specify primary key myself (ie. not auto generated number), how I can specify that?
Thanx

Hello,
By Yourself you mean : by hand or by a pl/sql?
If you say by trigger, the system doesn't care about what number is send. So you can give it "manually"
May I ask what is the reason of that?
Cheers,
Arnaud

EJB3: One-to-one relationships and auto-generation of primary key values...

Dear Forum,
I'm relatively new to JEE, and while I've so far enjoyed the convenience of EJB3 for most things, it seems that I have a corner case that can not be handled by the entity manager.
First, here's a quick mockup of my entities:
    Gallery
            |
            -- [1] -------[1] ----> Author
            |
            -- [1] -------[M] ---> Photo
                                              |
                                              -- [1] ------ [1] -> PhotoImage
                                                                                 |
                                                                                 -- [1] ------ [1] -> IPTCData
                                                                                 |
                                                                                 -- [1] ------ [1] -> EXIFDataI also have a remote, stateless session bean that does nothing more than persist()/merge()/remove() and locate (through find() and a few custom queries) my Gallery and Photo instances.
Now, the abridged version of my problem is this: when I persist a Photo, it naturally gets its primary key generated (I used @Id and @GeneratedValue). However, for some reason none of the other dependent entities inherit Photo's primary key value. In my client, I create a new Gallery locally and then persist it. I then create new Photo, PhotoImage, IPTCData and EXIFData instances. I add the IPTCData and EXIFData instances to PhotoImage (there are PhotoImage methods for adding those); then I add the PhotoImage instance to Photo (again, Photo has a setter for adding a PhotoImage). Then, I persist the Photo.
--- Aside: ------------
I've set up my relationships using annotations like @OneToMany (Gallery references a Collection of Photos), and @OneToOne (Photo's primary key references PhotoImage's primary key; PhotoImage's primary key references the primary keys of IPTCData and EXIFData). I've also added @JoinColumn annotations where necessary.
Finally, I get the Gallery instance's Photo collection (public Collection<Photo> getPhotos()), I add the Photo to the collection, and I add the Photo collection BACK to the Gallery (public void setPhotos(Collection<Photo>)).
At this point, the Gallery should have all of my entities contained inside of itself. However, when I persist the Gallery at this point, all of the entities show up in the database, but none of the primary keys get inherited. Photo's primary key gets generated automatically, of course, but the rest have zero (0) as their PK values. I had wanted, for example, IPTCData to get the value of Photo.id.
I had assumed that the entity manager would persist everything for me provided that I told it, through my annotations, about which entities relate to which. Does persistence only work in the direction of retrieval? That is, does the entity manager only do its thing when fetching (versus setting) data when there is more than 1 object in the graph? I can't believe that it can't, otherwise we'd all be ditching it and going back to straight SQL to do our work.
Thus, I HAVE to be doing something wrong, or else omitting to do something right.
I've made other incarnations of the above setup, and none of them have worked perfectly. I've even set up foreign key constraints in the database, but I had my share of unresolvable problems there, too.
So I guess my big question with all of this is: when you have a deeply nested graph of objects, can the entity manager figure everything out and persist all of the objects correctly and with the right values? If not, boo. If so, how does one accomplish this?
I know that I could persist each and every entity separately in my client code, but I wanted to have a natural-looking way of piecing all of my entities together. More specifically, I could persist IPTCData explicitly; however, I want to be able to add everything to a Photo and only persist the Photo itself, with the idea that all of the objects and sub-objects would be persisted automagically.
Is this possible? Or have I bought into a pipe dream with the guarantee of the proverbial magic bullet?
Thanks to everyone in advance for his/her input.
Regards,
Michael

Daniel,
Late last night I found the solution to my problem. And you're right, it had everything to do with which side is wired to which. I got confused about which side to consider the "owning" side, since one can look at it from the perspective of the database or the application.
Interestingly, the first 2 lines of your example code match my client code almost verbatim: First, I create a new Gallery (or else I get an existing one). I then create a new Photo and then add it to the Gallery's collection using add(). I then persist the Gallery. My session bean internally calls EntityManager.merge(gallery). How it differs from your example, though, is in the fact that, on an application level, a Photo has no knowledge whatsoever of a Gallery. Which is to say that my Photo class does not have a 'getGallery()' method. Somehow, Hibernate is able to figure it all out and still update Photo's 'parentIdRef' column in the database. My logs show that Hibernate issues a SQL UPDATE on the Photo after both a Gallery and a Photo have been created. It sets the Photo's 'parentIdRef' column to the primary key value of the owning Gallery.
Getting back to the matter, my problem was not with being able to map a Photo to a Gallery; rather, I was unable to add a PhotoImage to a Photo and have the relationship get correctly mapped in the database. The relationship between a Photo and a Gallery is many-to-one: there can be many Photo objects inside of a Gallery. In the database, a Photo row contains a 'parentIdRef' column whose value is that of a Gallery's primary key. I used @OneToMany on the Gallery, since a Gallery is, from an application perspective, the "owning" side, even though it's only the Photo that knows who it's referring to since only IT contains the 'parentIdRef' column in the database.
I tried setting up the relationship between a PhotoImage and a Photo in the same manner, with the PhotoImage having a 'parentIdRef' column and referring to a Photo's primary key. I had annotated the Photo's getPhotoImage() method with @OneToOne, along with an appropriate @JoinColumn.
It was THIS part that I had backwards. With a @OneToMany relationship, the child refers back to the parent --- it can be no other way. However, with a @OneToOne relationship, the owner refers to the child.
So, to make a long story short, all I had to do was create extra database columns for Photo. Those columns refer to the primary keys of PhotoImage, EXIFData and IPTCData. Concretely, for example, Photo.photoImageIdRef references PhotoImage.id. And so on and so forth.
The only negative side-effect of this is that my database-level foreign key constraints are now broken, since Hibernate wants to persist PhotoImage, EXIFData and IPTCData before it persists Photo.
I have to investigate more deeply the 'cascade=...' option of the @OneToOne annotation in order to find out it relates, if at all, to a database-level cascade.
Anyway, thanks for the reply. It seems that you had a very good idea about what my problem was. I would have posted the fact that I had resolved the problem last night, except that it was too late and I was heading to bed. If you still want the Duke points, let me know. I don't currently know the rules about if, when and to whom I should issue points in cases like these when I've already solved the problem.
Regards,
Michael

How to Work with Composite Primary Key

Hi All,
I'm working with Toplink JPA. Here I have A problem with inserting into database table which have composite Primary Key.
What I'm doing is, I have two tables. to maintain many to many relation between these two tables I created another intermediate table which consists of foreign Keys (reference) of above two tables.
Now these two foreign Keys in the Intermediate table made as composite Primary Keys.
When I'm trying to the data in the Intermediate table I'm getting the foreign Keys values are null..
could anyone suggest me how to work with composite Primary Keys
Thanks,
Satish

I have the same problem, I have 3 tables with a join table joining them all. I have created an intermediate table entity. When I go to create a an entry, it says that I cannot enter null into "ID". Here is the SQl toplink generates:
INSERT INTO Z_AUTH_USER_AUTHORIZATION (CONTEXT_ID, AUTHORIZATION_ID, USER_ID) VALUES (?, ?, ?)
bind => [null, null, null]
Here are the classes:
-----------------------Join Table-----------------------------------------------
@Entity()
@Table(name = "Z_AUTH_USER_AUTHORIZATION")
public class AuthUserAuthorization implements Serializable{
@EmbeddedId
private AuthUserAuthorizationPK compId;
// bi-directional many-to-one association to AuthAuthorization
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "AUTHORIZATION_ID", referencedColumnName = "ID", nullable = false, insertable = false, updatable = false)
private AuthAuthorization authAuthorization;
// bi-directional many-to-one association to AuthContext
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "CONTEXT_ID", referencedColumnName = "ID", nullable = false, insertable = false, updatable = false)
private AuthContext authContext;
// bi-directional many-to-one association to AuthUser
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "USER_ID", referencedColumnName = "ID", nullable = false, insertable = false, updatable = false)
private AuthUser authUser;
---------------------------------------User table--------------------------------------------------------------
@Entity()
@Table(name = "Z_AUTH_USER")
public class AuthUser implements Serializable, IUser{
@Id()
@SequenceGenerator(name = "AUTH_USER_ID_SEQ", sequenceName = "Z_AUTH_USER_ID_SEQ")
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "AUTH_USER_ID_SEQ")
@Column(name = "ID", unique = true, nullable = false, precision = 10)
private Integer id;
// bi-directional many-to-one association to AuthUserAuthorization
@OneToMany(mappedBy = "authUser", fetch = FetchType.EAGER)
private java.util.Set<AuthUserAuthorization> authUserAuthorizations;
-----------------------------------Context table-----------------------------------------------------------------
@Entity()
@Table(name = "Z_AUTH_CONTEXT")
public class AuthContext implements Serializable, IContext{
@Id()
@SequenceGenerator(name = "AUTH_CONTEXT_ID_SEQ", sequenceName = "Z_AUTH_CONTEXT_ID_SEQ")
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "AUTH_CONTEXT_ID_SEQ")
@Column(name = "ID", unique = true, nullable = false, precision = 8)
private Integer id;
// bi-directional many-to-one association to AuthUserAuthorization
@OneToMany(mappedBy = "authContext", fetch = FetchType.EAGER)
private java.util.Set<AuthUserAuthorization> authUserAuthorizations;
----------------------------Authorization table-------------------------------------------------
@Entity()
@Table(name = "Z_AUTH_AUTHORIZATION")
public class AuthAuthorization implements Serializable, IAuthorization{
@Id()
@SequenceGenerator(name = "AUTH_AUTHORIZATION_ID_SEQ", sequenceName = "Z_AUTH_AUTHORIZATION_ID_SEQ")
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "AUTH_AUTHORIZATION_ID_SEQ")
@Column(name = "ID", unique = true, nullable = false, precision = 8)
private Integer id;
// bi-directional many-to-one association to AuthUserAuthorization
@OneToMany(mappedBy = "authAuthorization", fetch = FetchType.EAGER)
private java.util.Set<AuthUserAuthorization> authUserAuthorizations;
I have tried to create the new entity several ways. I have tried to create one with the default constructor then set this entity on each of the other entities, I have also tried to pass in the entities to the join entity and set them there, but this doesn't work. Any help would be very appreciated!
Thanks,
Bill

Chaging primary key value when child record present

Please tell me how to change the primary key value when it's child record is present.

Well something like INSERT new primary key, UPDATE child records, DELETE old primary key would seem fairly obvious.
Using deferrable constraints may make the process rather simpler.
If on the other hand you are looking for UPDATE cascade functionality, Tom Kyte has an article regarding implementing this.
http://asktom.oracle.com/tkyte/update_cascade/index.html

How to update a parent child hierarchy in OBIEE

Hello All
Quick question about updating parent child hierarchy in OBIEE.
As we know, OBIEE 11G allows us to create value based hierarchy by generating table creation script and insert script. In the typical example of employee dimension, the parent child relationship table will be created with the following 4 attributes:
MEMBER_KEY, ANCESTOR_KEY, DISTANCE, IS_LEAF
So, what if later in the years some of the employees got promoted, retired or transferred? The value based hierarchy is going to change because person 1 reports to manager 2 now instead of 1. Obviously, the records in employee dimension is going to be updated. When that happens, how to update the parent child relation table with the same information? Do we have to rerun the insert script? How do we keep the history of employee changes and hierarchy changes?
Please advice
Thank you

I guess it will update when the structure changes,Let see the response from other gurus.
Thanks,

Validation on Primary Key value in TMG

Hi,
I have a custom table with field Outcome_id as primary key. I have to put some validation on this primary key value.
For the above I hv used a TMG Event '01' and written the code for validating the values.
On save when validation fails the primary key field gets disabled even though entry is prevented from being saved.Since the value of the primary key cannot be changed the validation fails recursively.
How cn I keep the primary key fields enabled when the validation fail.
Rgds,
Swati.

Hi,
As per basic Module pool programming a screen field gets disabled after throwing an error.
You will have to use Field statement in the module pool program generated for your tables TMG and modify it.
But please note- any time TMG is regenerated all changes are lost.
"refering sap help "
Checking Single FieldsIf you send a warning or error message from a module mod that you called using a FIELDstatement as follows:
FIELD f MODULE mod.
the corresponding input field on the current screen is made ready for input again, allowing the user to enter a new value. If the field is only checked once, the PAI processing continues directly after the FIELDstatement, and the preceding modules are not called again.
refer this :
[http://help.sap.com/saphelp_nw04s/helpdata/en/9f/dbaa4735c111d1829f0000e829fbfe/content.htm]
Edited by: sap_wiz on Jun 22, 2011 5:20 PM

Creating a New Row Using an ADF Iterator Binding without primary key value

I dropped a Create action onto a DataAction which forwards to a UIX entry page which contains an enabled Commit button. Part of the primary key value is held in a session bean and it is also current in another view on the model side, but I am unable to access this value to set the EntityImpl primary key attribute.
Upon submission the following error message is returned from the model:
ORA-01400: cannot insert NULL into ("GTR"."EMPLOYMENT"."ACCOUNT")
I would like to accomplish this with databinding and not create a custom create method on the application model. Is there a way to update the binding value for the new row in cache before the submission? Any advice would be welcome.

I should add that I want the user to enter every attribute value, except for the account number. It must be possible to create a new row and have the account number supplied to the bindings another way.

About sequences substituting primary key values

I've created trigger:
TRIGGER EMPLOYEES_TRG BEFORE INSERT ON EMPLOYESS
FOR EACH ROW
BEGIN
SELECT employees_seq.nextval
INTO :new.nr
FROM dual;
END;
following statement works just fine in SQL Worksheet:
insert into employees(Name, Surname) values ('M','C')
but when I try to make a swing client from application module using fields from entityView it seems that trigger doesn't fire as I commit. maybe the adequate statement
generated using ADF Business components doesn't generate "employees(Name, Surname)"?
The question is how to make my tables primary key get increased using trigger when I make a client form from two fields: Name, Surname and create and commit buttons.. ?

HI Mario,
your primary key in the entity object needs to be of DBSequence type.
It will show as a negative number in the form but when doing a commit the Trigger will catch it and change the value to sequence number.
Carl

?Trigger to return primary key value after insert"

Ok, so I'm a newbie to oracle. I was hoping someone could tell
me how I can get the value of a field after insertion. I
created a sequence and a trigger to autoincrement the primary
key. I figured out that select @@Identity does not work. So
I'm trying to figure out how to return the primary key value of
just inserted record.
Any help or suggestions would be really appreciated.
thanks matt

I have 3 tables - master, detail and collector.
when a record is inserted into the collector table - I want to fire a trigger and insert the value of "collector.a_test", "collector.b_test" into "master.test" and "detail.test" respectively.
I want to create an after/insert trigger on the collector table to accomplish this. I tried to implement the example listed in previous message (see below) *** BUT **** I get a PLS-00103 error - "Encountered the symbol "A_ID" when expecting one of the following: :=. ( @ %;
Note: master, detail and collector have before insert trigger/sequence that assigns their PK values.
master has 2 columns - a_id (number PK), a_test (varchar2(255))
detail has 3 columns - b_id (number PK), b_test (varchar2(255)), aa_id (number FK)
collector has 3 columns - c_id (number PK), a_test (varchar2(255)), b_test (varchar2(255))
as in;
create or replace trigger wf.c_a_b_insert
after insert on wf.collector
referencing old as old new as new
for each row
declare
aa_id master.a_id%type;
begin
insert into master (a_test) values(:new.a_test);
returning a_id into aa_id;
/* now insert into detail and get the FK value from aa_id */
end;
What am I doing wrong and how can I fix this?
Thanks much!
Bill G...

Need to get primary key value from entity

Hi,
I have 2 pages. In the first page on click of GO button, Im inserting data into table using EO and Immediately navigating to second page.
Primary Key value is generated in EOImpl java file.
In second screen, in the header region, I need to show the row inserted in table.
to query the VO, i need to have primary key generated in EOImpl.
Please let me know how can i get this value in either in PFR of first page or in PR of second page. Thanks.

Hi
have you included the eo that tyou are refering to in the header oif the second page..
if both pages are using the same AM, the data will appear.
at worse can you can get the ID from the eo using amethod in your AM.

How to update a parent (primary key) value?

Similar Messages

Maybe you are looking for