Is it possibel to update the primary key field

hello
i want to ask is it possible to update the value of primary key filed ?

784633 wrote:
hello
i want to ask is it possible to update the value of primary key filed ?What does it take to test for yourself?
I threw this together in about 90 seconds:
SQL> CREATE TABLE MYPKTEST
2      (
3       MYPK VARCHAR2(5),
4       MYOTHERSTUFF VARCHAR2(5),
5 PRIMARY KEY (MYPK) VALIDATE
6      );
Table created.
SQL> --
SQL> insert into mypktest values
2      ('abcde',
3       'vwxyz'
4      );
1 row created.
SQL> --
SQL> select * from mypktest;
MYPK MYOTH
abcde vwxyz
SQL> --
SQL> update mypktest
2 set mypk = 'fhgij'
3 where mypk= 'abcde';
1 row updated.
SQL> --
SQL> select * from mypktest;
MYPK MYOTH
fhgij vwxyz
SQL> spool off

Similar Messages

Updation of Primary Key field in HR Tables (PA2001 and PA2002) - Urgent

Can anyone please tell me how to update a primary key field in HR Tables (PA2001 and PA2002).
I need to update sprps field in both the tables. I used HR_Infotype_Operation function module, but still it is not updating the field.
Pls find the following code snippet for the table PA2001 and let me know if any discrepancies :
TABLES: pa2001.
DATA: it_pa2001 TYPE TABLE OF pa2001,
wa_pa2001 LIKE LINE OF it_pa2001,
DATA: date TYPE d.
date = sy-datum - 100.
SELECT pernr sprps begda endda FROM PA2001 INTO CORRESPONDING FIELDS OF TABLE it_pa2001
WHERE begda BETWEEN date and sy-datum.
WRITE:/.
WRITE:/ 'PA 2001 Records'.
if sy-subrc <> 0.
WRITE:/ 'No Data Exists'.
else.
LOOP AT it_pa2001 INTO wa_pa2001.
WRITE:/ wa_pa2001-pernr, wa_pa2001-sprps, wa_pa2001-begda, wa_pa2001-endda.
ENDLOOP.
endif.
LOOP AT it_pa2001 INTO wa_pa2001.
wa_pa2001-sprps = 'X'.
CALL FUNCTION 'HR_INFOTYPE_OPERATION'
EXPORTING
infty = '2001'
number = wa_pa2001-pernr
SUBTYPE =
OBJECTID =
LOCKINDICATOR =
VALIDITYEND =
VALIDITYBEGIN =
RECORDNUMBER =
record = wa_pa2001
operation = 'MOD'
TCLAS = 'A'
DIALOG_MODE = '0'
NOCOMMIT =
VIEW_IDENTIFIER =
SECONDARY_RECORD =
IMPORTING
RETURN =
KEY =
ENDLOOP.
if sy-subrc = 0.
write:/ 'SY-subrc is zero'.
write:/ ' Rows modified = ', sy-dbcnt.
else.
write:/ 'No Record(s) updated'.
endif.
commit work.
WRITE: / 'Updated Records in the Internal Table IT_PA2001'.
SELECT pernr sprps begda endda FROM PA2001 INTO CORRESPONDING FIELDS OF TABLE it_pa2001
WHERE begda BETWEEN date AND sy-datum..
LOOP AT it_pa2001 INTO wa_pa2001.
WRITE:/ wa_pa2001-pernr, wa_pa2001-sprps, wa_pa2001-begda, wa_pa2001-endda.
ENDLOOP.

Thanks Kiran.
But I need to change this field as we need to lock the records, as soon as the employee fills his/her time sheets which will be sent for HR Payroll, later on.
When I am updating directly the field the database table PA2001, its not updating but for table PA2002, only few records are being updated.
Is there any other alternative for this problem?
Pls reply.
Thanks,
Harish

Prob with Updation of Primary Key field '' SPRPS '' in PA2001. Plz HELP

Can anyone please tell me how to update a primary key field in HR Tables (PA2001 and PA2002).
I need to update sprps field in both the tables. I used HR_Infotype_Operation function module, but still it is not updating the field.
Pls find the following code snippet for the table PA2001 and let me know if any discrepancies :
TABLES: pa2001.
DATA: it_pa2001 TYPE TABLE OF pa2001,
wa_pa2001 LIKE LINE OF it_pa2001,
DATA: date TYPE d.
date = sy-datum - 100.
SELECT pernr sprps begda endda FROM PA2001 INTO CORRESPONDING FIELDS OF TABLE it_pa2001
WHERE begda BETWEEN date and sy-datum.
WRITE:/.
WRITE:/ 'PA 2001 Records'.
if sy-subrc <> 0.
WRITE:/ 'No Data Exists'.
else.
LOOP AT it_pa2001 INTO wa_pa2001.
WRITE:/ wa_pa2001-pernr, wa_pa2001-sprps, wa_pa2001-begda, wa_pa2001-endda.
ENDLOOP.
endif.
LOOP AT it_pa2001 INTO wa_pa2001.
wa_pa2001-sprps = 'X'.
CALL FUNCTION 'HR_INFOTYPE_OPERATION'
EXPORTING
infty = '2001'
number = wa_pa2001-pernr
SUBTYPE =
OBJECTID =
LOCKINDICATOR =
VALIDITYEND =
VALIDITYBEGIN =
RECORDNUMBER =
record = wa_pa2001
operation = 'MOD'
TCLAS = 'A'
DIALOG_MODE = '0'
NOCOMMIT =
VIEW_IDENTIFIER =
SECONDARY_RECORD =
IMPORTING
RETURN =
KEY =
ENDLOOP.
if sy-subrc = 0.
write:/ 'SY-subrc is zero'.
write:/ ' Rows modified = ', sy-dbcnt.
else.
write:/ 'No Record(s) updated'.
endif.
commit work.
WRITE: / 'Updated Records in the Internal Table IT_PA2001'.
SELECT pernr sprps begda endda FROM PA2001 INTO CORRESPONDING FIELDS OF TABLE it_pa2001
WHERE begda BETWEEN date AND sy-datum..
LOOP AT it_pa2001 INTO wa_pa2001.
WRITE:/ wa_pa2001-pernr, wa_pa2001-sprps, wa_pa2001-begda, wa_pa2001-endda.
ENDLOOP.

Thanks Kiran.
But I need to change this field as we need to lock the records, as soon as the employee fills his/her time sheets which will be sent for HR Payroll, later on.
When I am updating directly the field the database table PA2001, its not updating but for table PA2002, only few records are being updated.
Is there any other alternative for this problem?
Pls reply.
Thanks,
Harish

Exception: non-read-only mapping defined for the primary key field

Hello.
I'm new to Oracle and I created Java EE Web Project.
And I created entities from tableA, tableB, tableC from my database.
tableA has foreign key to tableB and has unidirectional Many-to-One relationship. tableC has two primary keys and one of these is foreign key to primary key in tableA. tableC also has unidirection Many-to-One relationship to tableA.
Then I created session bean and data control from it, in design window, created read-only table from tableA.
And I selected columns in tableA and also in tableB.
I ran the application and saw the following exception in log window.
Local Exception Stack:
Exception [EclipseLink-46] (Eclipse Persistence Services - 2.1.3.v20110304-r9073): org.eclipse.persistence.exceptions.DescriptorException
Exception Description: There should be one non-read-only mapping defined for the primary key field [tableC.tableA_ID].
Descriptor: RelationalDescriptor(mypack.tableC --> [DatabaseTable(tableC)])
tableA_ID is a primary key in tableA.
How can I solve this error?
Please help me.
Edited by: 900471 on 2011. 12. 3 오전 5:32
Edited by: 900471 on 2011. 12. 3 오전 5:33
Edited by: 900471 on 2011. 12. 3 오전 5:33
Edited by: 900471 on 2011. 12. 3 오전 5:34

There are not enough details to be sure since you have not provided the mappings. From just the error, it looks like you are using the tableC.tableA_ID field as the foreign key in the ManyToOne relationship to A, but have marked it as insertable=false, writeable=false, meaning that it cannot be updated or used for inserts.
Either make it writable (set the settings to true), or add another basic mapping/attribute in the entity for TableC that maps to the field which you can use to set when you insert a new tableC entity. A simple example is available at
http://wiki.eclipse.org/EclipseLink/Examples/JPA/2.0/DerivedIdentifiers
Best Regards,
Chris

How to display the Primary key field in Application Form.

IDFINALNO , USERNAME
(No view) , RockQin
I developed one new application form which is including the "Edit" item in every record.
But I can not find the data that is Primary key field . So how to config the property to display that data.
Thanks a lot!

One of the guidelines when selecting column for a primary key is:
Choose a column whose data values are never changed. A primary key value is only used to identify a row in the table, and its data should never be used for any other purpose. Therefore, primary key values should rarely or never be changed.
Cheers!

For the Primary Key Field with the combination of other fields

Hai
I Have a problem in creating trigger for the following
the problem goes like this..
i have a table with the fields
fld1 (varchar2(6) fld2(varchar2(20)) fld3 (number)
the fld1 is a primary key.
here in this table i am inserting the values ..
At the time of inserting the fld1 should get the part value of fld2
say if new value for fld2 is "SAM & CO" then
it should take the first letter and then followed by the sequence..
i.e., the fld1 is the combination of a
letter + firt letter of the fld2 + sequence
fld1 fld2 fld3
CS001 SSSSS 324234
CP001 PPPPP 5345435
CS002 SSSS 53543543
Here the Sequence should vary depending on the alphabet of the fld1
if P the the Sequence should be the next number of fld1 to P
i.e.,
if i add the value like this
insert into tname(fld2,fld3) values('PQQQQ',34343)
then it should be inserted as
CP002 PQQQQ 34343
I need the solution for this..
Thanx
Gaya3
thanx
gaya3

There are not enough details to be sure since you have not provided the mappings. From just the error, it looks like you are using the tableC.tableA_ID field as the foreign key in the ManyToOne relationship to A, but have marked it as insertable=false, writeable=false, meaning that it cannot be updated or used for inserts.
Either make it writable (set the settings to true), or add another basic mapping/attribute in the entity for TableC that maps to the field which you can use to set when you insert a new tableC entity. A simple example is available at
http://wiki.eclipse.org/EclipseLink/Examples/JPA/2.0/DerivedIdentifiers
Best Regards,
Chris

Who can I update primary key field in master block

Hi,
I want to update the primary key field in master block when there are some records are present in detail block, when I edit the primary key filed there is an error FRM-40509 unable to update record. The primary key is also referred by the detail table.
So kindly give me the solution who can I update the primary key in master block when there is child records exists in detail block?.
Best regard,
shahzad

pls tell us a little more about, why you want to update a PK in a master block.
I haven't done that my whole time. Maybe you need something different.
The problem is, that your child-data references to the master-pk, so there is the point you have to go deep into the codings. But better don't do it. Tell us first why. I think there are other solutions for that.
try it
Gerd

Cannot modify value of primary key field after lookup.

I realize this could be a WebSphere problem, but I don't know if it is an EJB problem or what? So I'm posting anyway, and adding Duke Dollars in the hopes someone out there has encountered this.
Okay, I'm using WebSphere Studio Application Developer 4.0.3.
I am using an EJB that has three primary key fields.
I use the primary keys to lookup the bean.
I then want to update the value of one of the primary keys.
So I create a setter and getter method for that primary key field.
I then can call the set method, but it does nothing.
I get no errors.
It compiles.
I rebuild, regenerate access beans, and redeploy and rmic.
I can use ctrl-space to see the functions in the JSP editor.
However, the set function never gets called for some reason, and I get no runtime exception either.
For example, if I do this in my code:
MyBeanFactory myBean = new MyBeanFactory();
MyBeanKey myBeanKey = new MyBean(name,age,city);
MyBean myBean = myBeanFactory.findByPrimaryKey(myBeanKey);
// this function doesn't do anything, because it's a primary key field
// but it does compile and I get no runtime errors
myBean.setCity("Orlando");
// this function works fine, presumably because it isn't a primary key
myBean.setState("Florida");Questions;
Is there a restriction that says I can't update the value of a field if it is marked as a primary key?
If not, what could I be doing wrong?

Looks like your appserver is working as per the specification.
Check this out:
Question
How can I update the primary key field in a CMP Entity Bean?
Derived from
A question posed by Shanks75 shanks75
Topics
Java:API:EJB:EntityBean:CMP, Java:API:EJB:2.0
Author
Tim Duggan
Created
Oct 9, 2001
Answer
You cannot change the primary key field of an Entity bean. Refer to page 130 of the EJB 2.0 specification, it states "Once the
primary key for an entity bean has been set, the Bean Provider must not attempt to change it by use of set accessor methods
on the primary key cmp-fields. The Bean provider should therefore not expose the set accessor methods for the primary key
cmp-fields in the component interface of the entity bean."
A work around to update a primary key field, would be to remove and then an re-create the bean.
taken from here:
http://www.jguru.com/faq/view.jsp?EID=515864

Automatic row processing updating my primary key

Hi all!
In Apex 3.2, I've got an Interactive report with a DML form on a table. My table has a primary key which use a sequence (trigger based). When I created my forms, I specified that I wanted to use an existing trigger as the source type of the primary key.
When I try to create a record, it work. If I try to create a new record and save, my trigger give me an error message because the automatic row processing is trying to update the primary key too. (My trigger on the update specify that the primary key should not be updated).
So my question is : How can I make the automatic row processing update everything but the primary key ? (I noticed that I could have asked APEX to use my SEQUENCE directly instead of the trigger (in the creation Wizard). But I dont know how to change this now that my form is created.)
Is there a source type that I can change in my primary key item ?
Note : My primary key item (id_emp) is protected and hidden. If I display it as "Display only", the update works... But I dont need to see id_emp on my form.

OK,
From your first post, it sounds as though the process is trying to perform an INSERT rather than an UPDATE. It is, therefore, trying to create a new record using a primary key that already exists on the table.
If that is the case, then we need to go through the points along that route:
1 - when you load a record into the page, the primary key page item should be given a value. So, firstly, check the link is populating the correct page item. And then, when the page has loaded, click the Session button on the Developer's toolbar at the bottom of the screen and check that the value is there
2 - when the page loads, one, and only one, page item should have the primary key value. This should be P3_NO_EMPLOYE*. Check other page items to make sure that their source is not NO_EMPLOYE. Again, check with using the Session button to see if the value appears anywhere else on the page
3 - when the page loads, the "SAVE" button should become visible. Check that this is conditional on P3_NO_EMPLOYE being NOT NULL
4 - there should be one, and only one, button that triggers the SAVE action. Check that there are no other buttons that either (A) are called SAVE or (B) trigger the INSERT SQL database action
5 - when the SAVE button is clicked, the "Process Row of..." process should be triggered and, because the button is SAVE and, therefore, sends "SAVE" as the REQUEST value, the process identifies this request as an Update database action. Check that you have Update ticked on the process and that you only have one process that can perform the update
6 - it is possible to change the value of the Request after a button has been clicked, so check that you have no computations or processes that run before the "Process Row of..." process
Andy

Updation of Primary Key in HR Table(PA2001)

Can anyone please tell me how to update a primary key field in HR Tables (PA2001 and PA2002).
I need to update <b>sprps</b> field in both the tables. I used HR_Infotype_Operation function module, but still it is not updating the field.
Pls find the following code snippet for the table PA2001 and let me know if any discrepancies :
TABLES: pa2001.
DATA: it_pa2001 TYPE TABLE OF pa2001,
      wa_pa2001 LIKE LINE OF it_pa2001,
DATA: date TYPE d.
date = sy-datum - 100.
SELECT pernr sprps begda endda FROM PA2001 INTO CORRESPONDING FIELDS OF TABLE it_pa2001
WHERE begda BETWEEN date and sy-datum.
WRITE:/.
WRITE:/ 'PA 2001 Records'.
if sy-subrc <> 0.
WRITE:/ 'No Data Exists'.
else.
LOOP AT it_pa2001 INTO wa_pa2001.
WRITE:/ wa_pa2001-pernr, wa_pa2001-sprps, wa_pa2001-begda, wa_pa2001-endda.
ENDLOOP.
endif.
LOOP AT it_pa2001 INTO wa_pa2001.
wa_pa2001-sprps = 'X'.
                                 CALL FUNCTION 'HR_INFOTYPE_OPERATION'
                                   EXPORTING
                                     infty                  = '2001'
                                     number                 = wa_pa2001-pernr
                                   SUBTYPE                =
                                   OBJECTID               =
                                   LOCKINDICATOR          =
                                   VALIDITYEND            =
                                   VALIDITYBEGIN          =
                                   RECORDNUMBER           =
                                     record                 = wa_pa2001
                                     operation              = 'MOD'
                                   TCLAS                  = 'A'
                                   DIALOG_MODE            = '0'
                                   NOCOMMIT               =
                                   VIEW_IDENTIFIER        =
                                   SECONDARY_RECORD       =
                                 IMPORTING
                                   RETURN                 =
                                   KEY                    =
ENDLOOP.
if sy-subrc = 0.
write:/ 'SY-subrc is zero'.
write:/ ' Rows modified = ', sy-dbcnt.
else.
write:/ 'No Record(s) updated'.
endif.
commit work.
WRITE: / 'Updated Records in the Internal Table IT_PA2001'.
SELECT pernr sprps begda endda FROM PA2001 INTO CORRESPONDING FIELDS OF TABLE it_pa2001
WHERE begda BETWEEN date AND sy-datum..
LOOP AT it_pa2001 INTO wa_pa2001.
WRITE:/ wa_pa2001-pernr, wa_pa2001-sprps, wa_pa2001-begda, wa_pa2001-endda.
ENDLOOP.

Thanks Kiran.
But I need to change this field as we need to lock the records, as soon as the employee fills his/her time sheets which will be sent for HR Payroll, later on.
When I am updating directly the field the database table PA2001, its not updating but for table PA2002, only few records are being updated.
Is there any other alternative for this problem?
Pls reply.
Thanks,
Harish

Primary key field problem in DBSchema Wizard

Hi,
I am using Sun ONE studio 4 update 1, EE.
I have generated schema using the Database Schema Wizard.
The generated table representations does not recognise the primary key fields so I can not map my CMP to any table :-(
Is this a bug?
because I have generated schemas from 3 different databases (IBM, MySQL, SAP) and the tables have primary key fields.
When I get a connection in Runtime Pane under Database node, I can see the primary fields are highlighted with red color.
However, when I obtain the schema using, New->Database->Database Schema, there are no primary key fields generated.
Anyone have any ideas, work around?
Thanks
Tex...

First, thanks for posting the code that lets us reproduce your test. That is essential for issues like this.
Because the primary key is global you will not be able to use
INCLUDING INDEXES
WITH VALIDATION;And you will need to add the primary key to the temp table
ALTER TABLE DEMO_INTERVAL_DATA_LOAD_Y ADD CONSTRAINT IDX_DEMO_ROLL_Y PRIMARY KEY (ROLL_NUM);The the exchange will work. You will need to rebuild the primary key after the exchange.

Change primary key field in Master-Detail Form (Urgent)

Hi,
Can some experts share your valuable experience on the problem below?
We have created a form Master-Detail relation. For some reasons, we have to allow the primary key field to be editable. But we couln't achieve it in Form 6i. It gives update error during commit.
Your kind help will be highly appreciated.
Regards,
YM

Hi there,
I think the problem is because u are updating the primary key in the master block but since it is a master detail block u need to update it in the detail block as well.so what i suggest u to do is in the pre-insert trigger assign the value of master primarykey to the detail primary key....
just check this out hopefully this shud help u.
Bye
Atul

Problems referencing a primary key field in a master-detail

Hello,
I am making an application where I have a master-detail page.
In the detail section it is possible to add new rows using the standard "Add row"-button that the wizard creates.
The detail section has a column with a link in it. This link leads to another part of the application.
When I press this link I would like to send the field "Id" of the current detail row to the page which the link redirects to.
So far I have concluded that the primary key field "Id" of the detail is only filled out after I do a submit. So I have my column link set up to do:
javascript: doSubmit('NAVIGATE_1');
In the branching I am testing on the :REQUEST object to see if it contains 'NAVIGATE_1' - I can't seem to get the value from the "Id" field though. I tried to add #ID# in the javascript submit call - but since the "Id" is filled only after I submitted then this doesnt really work at all.
Does anyone have an idea on how to make this work in APEX ? Its probably some simple thing that I just didnt think of yet ;)
Kind regards
Bo Normann

I found a way. I dont like it - but it works.
I made a column link in the detail with the following:
javascript: doSubmit('NAVIGATE@#ROWNUM#);
This way I obtain information in the :REQUEST object about which row was clicked.
In a After submit process on the page I then parse this :REQUEST object like this:
DECLARE
v_row NUMBER;
v_pos NUMBER;
BEGIN
v_pos := instr(:REQUEST,'@',-1);
v_row := substr(:REQUEST, v_pos+1);
IF APEX_Application.g_f02(v_row) IS NOT NULL THEN
:P_PRIMARY_KEY_ID:= APEX_Application.g_f02(v_row);
ELSE
:P_PRIMARY_KEY_ID:= -1;
END IF;
END;
I know that my "Id" column is named f02 in the form, so this way I can find the id. I then assign this id to a kind of global variable - on the page I redirected to I can now find the Id.
Talk about ugly code :P

Parameters in Url..how do I use login information to insert the primary key

Uggg, it is 3 am, I am so tired. Please help.
I have made a registration page for my site. Hurray it works.
Login Page. It works
Protected some pages. Works
Now I am trying to make a page that the users can go to and update their user information. User name, password, email ect.
I can get it to prepopulate if I put ?id=3, or someother primary key in the url by hand.....and it does update the data.... but I can't, for the life of me, figure out how to make it use the users login information to get and insert the primary key in the url from the link to the update page.
I have used the hyperlink box and chose the updateaccount.php file, then went to parameters and selected Name: id Value: I chose id from the dropdown from the data base. This puts in an echo that looks like it should work. NO SUCH LUCK.
Pleeeese!!! What am I doing wrong.
I am a total novice. Done a few static sites. So please speak slowly.
Thanks sooooo much

I really can´t recommend exposing critical stuff like e.g. the user´s login_id in the URL, because once it´s visible, it can be changed by anyone. Better insert the Session Variable kt_login_id, which will only be availabe on a custom PHP page when inserting...
<?php session_start(); ?>
...on line 1 of this document.
Cheers,
Günter

How to get the PRIMARY KEY of a table at runtime ???

Hi everybody,
My requirement is to update a z-table at runtime according to the data given ata runtime. So the main difficulties for me is that whenever I tried to update the table based on the data given in UI many rows are getting updated as these fields are not unique. So I think if I can get the PRIMARY KEY along with these given fields then I can update only one row at a time.
So Can anyone suggest me how to get PRIMARY KEY of a table based on the data in UI..??
Any suggestions will be appreciated..
Thanks,
Sekhar

U will get primary keys of transparent tables using FM "REUSE_FIELDCALATLOG_MERGE".
pass tyour table name and u will get fieldcatalog filled. In tht their is a field called "KEY" if it has 'X' then tht field is a primary key of transparent tables & if it has "space" then it is not a primary key...
Or else you can try with 'DDIF_TABT_GET'
Or try this code
PARAMETERS: p_table TYPE tabname OBLIGATORY.
DATA: go_strucdescr   TYPE REF TO cl_abap_structdescr,
      gt_tab_fields   TYPE ddfields.
FIELD-SYMBOLS: <gwa_tab_field> TYPE dfies.
TRY .
*   Get the details of the DDIC table
    go_strucdescr ?= cl_abap_elemdescr=>describe_by_name( p_table ).
CATCH cx_sy_move_cast_error .
    MESSAGE 'Error while casting' TYPE 'S'. RETURN.
ENDTRY.
* Check if input is a DDIC table
CHECK go_strucdescr->is_ddic_type( ) = 'X'.
* Get the details of the table fields
gt_tab_fields = go_strucdescr->get_ddic_field_list( ).
* Display the Key fields of the table
LOOP AT gt_tab_fields ASSIGNING <gwa_tab_field> WHERE keyflag = 'X'.
WRITE: / <gwa_tab_field>-fieldname.
ENDLOOP.

Is it possibel to update the primary key field

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