Generate the primary key automatically while records are saved

Hi experts,
I need to generate the primary key of a custom table automatically when a new record is saved. Pleas help asap. Urgent.

Hi Rob and vikas,
   Thanks for your answers . Both of the solutions you mentioned were syntactically correct and activated but they are not populating the numbers.In case of Rob's soultion I guess I am not able to catch the return number. I am giving the code below. So Please look into it,
FORM gen_manu_siteid .
data : number type zsiteid value 155.
CALL FUNCTION 'NUMBER_GET_NEXT'
EXPORTING
    NR_RANGE_NR                   = '02'
    OBJECT                        = 'zmanusite'
    QUANTITY                      = '1'
SUBOBJECT                     = ' '
TOYEAR                        = '0000'
IGNORE_BUFFER                 = ' '
IMPORTING
    NUMBER                        = number
QUANTITY                      =
RETURNCODE                    =
EXCEPTIONS
INTERVAL_NOT_FOUND            = 1
NUMBER_RANGE_NOT_INTERN       = 2
OBJECT_NOT_FOUND              = 3
QUANTITY_IS_0                 = 4
QUANTITY_IS_NOT_1             = 5
INTERVAL_OVERFLOW             = 6
BUFFER_OVERFLOW               = 7
OTHERS                        = 8
*IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
*ENDIF.
ztblqm_sqm-zsiteid = number .
ENDFORM.                    " gen_manu_siteid
When this did not work. i tried Vikas's soution and the code i used for this is
FORM gen_manu_siteid .
data : w_count like ztblqm_sqm-zsiteid,
       e_wa like ztblqm_sqm occurs 0 with header line.
select max( zsiteid ) from ztblqm_sqm into w_count .
w_count = w_count + 1.
e_wa-zsiteid = w_count.
modify ztblqm_sqm from e_wa.
ENDFORM.                    " gen_manu_siteid
Please look into this and give me a solution.
NB: I have tried them at the event 01 include.

Similar Messages

How to generate the primary key item automatically in form region?.

Hi,
The primary key item is generated automatically in report region.I already give the pl/sql function for generating of primary key.but I want to generate the primary key value automatically in form region only?.how to do this?.Pls help me..
Thanks and Regards.

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!

Problem in generating the Primary Key

Hi All ,
I am trying to persist an object and also generating the primary key using a default sequence . But the problem is that the Primary key is getting incremented by 2 instead of 1 . My code looks like this :
import java.util.HashMap;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.EntityTransaction;
import javax.persistence.Persistence;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceContextType;
import javax.persistence.PersistenceUnit;
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//      oBJTab1.setId(Age);
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My persistence.xml looks like this :
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
<persistence-unit name="testApp">
<provider>oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider</provider>
<class>Tab1</class>

<properties>

<property name="toplink.jdbc.driver" value="oracle.jdbc.driver.OracleDriver"/>
<property name="toplink.jdbc.url" value="jdbc:oracle:thin:@127.0.0.1:1521:XE"/>
<property name="toplink.jdbc.user" value="system"/>
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Please provide me with some pointer as to know where the things are going wrong.

If you generated your original schema using toplink.ddl-generation, then later dropped it and created it then you should keep in mind the sequence table does not get dropped. This can lead to an initially 'empty' database with a PK sequence starting at '2' if you have one persistence unit and one entity. Can you steadily duplicate this or did you just notice that your persist started with an key of '2'? Just a thought.

If I have an EntityBean that mappes to two tables within one database, when I create that EJB, whoes reponsibilty to generate the primary key in database table? The RDBMS or EJB?

If I have an EntityBean that mappes to two tables within one database, when I create
that EJB, whoes reponsibilty to generate the primary key in database table? The
RDBMS or EJB?
Thanks,
JW

Refer to http://e-docs.bea.com/wls/docs81/faq/ejb.html/#257430
"Jingwei Zhang" <[email protected]> wrote:
>
If I have an EntityBean that mappes to two tables within one database,
when I create
that EJB, whoes reponsibilty to generate the primary key in database
table? The
RDBMS or EJB?
Thanks,
JW

Auto generate the primary key value for eah valid insertion

i have a table EMP having emp_id, name and age.
EMP;
E1 John 23
E2 Mary 25
created a form/report page on the table. the report page displays all the columns. while creating new entry, the emp_is hidden and the name , age are displayed. on successful insertion the emp_id is populated with 1 rather then E3.
1 Rick 22
E1 John 23
E2 Mary 25
how do i ensure that the new row inserted has a value E3 and the subsequent entries, emp_id is incremented by next sequence.

If your emp_id is not numeric and needs to be 'E' + sequence then you need to delete the existing trigger and create a new one like this:
CREATE OR REPLACE TRIGGER emp_bi_trg
   BEFORE INSERT
   ON emp
   FOR EACH ROW
BEGIN
   IF :NEW.emp_id IS NULL
   THEN
      SELECT 'E' || emp_seq.NEXTVAL
        INTO :NEW.emp_id
        FROM DUAL;
   END IF;
END;
/Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.opal-consulting.de/training
http://apex.oracle.com/pls/otn/f?p=31517:1
------------------------------------------------------------------------------

Insert record and return the primary key

Okay, I need to insert a record into a MSSQL database and return the primary key of that record. Im using the following code which is obviously wrong as I'm getting either 'NULL' or 'com.microsoft.jdbc.base.BaseResultSet@1d520c4' returned depending on the ways I've tried. The primary key is an int value called clientID which is incremented by one each time a new record is added.
// set the prepared statement
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Yes. I tried this way but I only ever get the answer
of 0 when i print our the result! Not really sure
whats happening.That's because you don't print a ResultSet like that. In order to get the key out, you have to do this:
int key = 0;
while (rs.next())
    key = rs.getInt(1);What were you thinking with your code?
You might want to do this in a transaction. If the INSERT fails, you'll want to roll back.
The "select @@identity" is correct for M$ Access, SQL Server, and Sybase. I believe it's also correct for MySQL, but I'm not 100% certain of that.
%

Error while creating the Unique Index of the Primary Key of an Item

Hi all,
I have deployed a new item (CO_CONTRACTUNIT_PRODUCT) in my publication. The deploy appears to be successfull as the item can be seen in the repository through the Mobile Manager.
The problem occurs when i sync my local DB to get the item offline. While synchronizing, the following error appears, both in the sync window and the log file ol_sync.log.
"ERROR",POL-5130,"11/09/2010 11:43:52","table or view %s.%s not found:CO_CONTRACTUNIT_PRODUCT,CO_CONTRACTID,OD_PRODUCTID,CO_CONTRACTUNITID","DB_ROSHNI"
However, the debug file gives this other error regarding this table.
ALL_INDEX:CREATE UNIQUE INDEX "TPCO_CONTRACTUNIT_PRODUCT_PK" ON CO_CONTRACTUNIT_PRODUCT (CO_CONTRACTID,OD_PRODUCTID,CO_CONTRACTUNITID) -5130Error at C:\ADE\omeprod_ol103021\olite\db\build\win\ocapi\..\..\..\src\ocapi\allindexes.cpp line:329 rc:-5130
Build date Mar 29 2010
okErr=(table or view %s.%s not found)
mess=(CO_CONTRACTUNIT_PRODUCT,CO_CONTRACTID,OD_PRODUCTID,CO_CONTRACTUNITID)
AddLog(-5130 "ERROR",POL-5130,"11/09/2010 11:43:52","table or view %s.%s not found:CO_CONTRACTUNIT_PRODUCT,CO_CONTRACTID,OD_PRODUCTID,CO_CONTRACTUNITID","DB_ROSHNI")
But the index that is being created and is giving the error is the index created automatically with the Primary Key of the table, and so nothing has been modified in that.
The primary key of the table is created with the three columns that are part of the index that is returning the error.
As I could not solve the error, I tried to drop and re-create the item in the repository, but no luck. As a last option, i tried to remove the item from the repository to be able to sync properly again (just like before creating the item), but the error still happens.
Another weird point is that i have tried creating the item in another publication of another database (but with almost equal items), and the item could was downloaded to my local DB without any problem, which makes this problem still more bizarre.
What can it be?
Any help would be great!
Roshni

have you tried unistalling the client and reinstalling it?
schema evolution changes are not always handled correctly please check thread:
Modification of publication item into Mobile Server
i quote from rekounas instructions:
If you are just adding a field, you should only have to run the alter publication item API call.
Here is an old note on schema evolution on different scenarios. The names for the APIs that they use are now deprecated. Use the ConsolidatorManager class and call the method alterPublicationItem("PUBLICATION_ITEM_NAME", "SELECT STMT") :
A) Add column
1. Upload all client data. Clients should not add new data until they are told by the administrator to sync again!!
2. Stop Mobile Server listener
3. Change the Oracle8i/9i database schema (add column)
4. Create a Java program to call the Consolidator Admin API AlterPublicationItem()
5. Start Mobile Server
6. Execute a sync from the client
7. The new column should be seen on the client. Use MSQL to check snapshot definitions.
B) Drop column
1. Upload all client data. Clients should not add new data until they are told by the administrator to sync again!!
2. Stop Mobile Server listener
3. Delete column of the base table in the Oracle database schema
4. Create a Java program to call the Consolidator Admin API DropPublicationItem()
5. Create a Java program to call the Consolidator Admin API CreatePublicationItem() and AddPublicationItem().
6. Start Mobile Server
7. Execute a sync from the client
8. The new column should be seen on the cliet. Use MSQL to check snapshot definitions.
C) Change column datatype
Changing datatypes in a repliatated system is not an easy task. You have to follow certain procedures in order to make it to work. Use DropPublicationItem, CreatePublicationItem and AddPublicationItem methods from the Consolidator Admin API. You must stop/start Mobile Server listener to refresh the cache.
1. Client syncs. Clients should not add new data until they are told by the administrator to sync again!!
2. Stop Mobile Server listener
3. Drop/create column (do not use conversion procudures) at the base table
4. Call DropPublicationItem(). Check if the ErrorQueue and InQueue no longer exist.
5. Call CreatePublicationItem() and AddPublicationItem(). Check if the ErrorQueue and InQueue reflect the new column datatype
6. Start Mobile Server. This automatically resumes application
7. Client executes sync. This should drop the old snapshot and recreate the new snapshot. Use MSQL to check
snapshot definitions.
D) Drop table
1. Client syncs. Clients should not add new data until they are told by the administrator to sync again!!
2. Stop Mobile Server listener
3. Drop base table
4. Call DropPublicationItem(). Check if the ErrorQueue and InQueue no longer exist.
5. Start Mobile Server. This automatically resumes application
6. Client executes sync. This should drop the old snapshot. Use MSQL to check snapshot definitions.
E) Add table
1. Client syncs. Clients should not add new data until they are told by the administrator to sync again!!
2. Stop Mobile Server listener
3. Add new base table
4. Call CreatePublicationItem() and AddPublicationItem() method
5. Start Mobile Server. This automatically resumes application
6. Client executes sync. This should add the new snapshot. Use MSQL to check snapshot definitions.
F) Changing Primary Keys
Chaning PK is a severe operation which must be executed manually. A snapshot must be deleted and recreated to propagate the changes to the clients. This causes a full refresh on this snapshot.
1. Client syncs. Clients should not add new data until they are told by the administrator to sync again!!
2. Stop Mobile Server listener
3. Drop the snapshot using DropPublicationItem() method o
4. Alter the base table
5. Call CreatePublicationItem()and AddPublicationItem() methods for the altered table
6. Start Mobile Server. This automatically resumes application
7. Client executes sync. The old snapshot will be replaced by the new snapstot using a full refresh. Use MSQL to check snapshot definitions.
G) To Change a Table Weight =>
Follow the procedure below to change the Table Weight parameter. The table weight is used by the Mobile Server/Synchronization to determin the sequence in which client records are applied to the Oracle database.
1. Run MGP to apply any changes in the InQueue to the Oracle databse
2. Change table weight using SetTemplateItemMetadata() method
3. Add/change constraint on the the base table which reflects the change in table weight
4. Synchronize
gl m8

Generate primary key automatically

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I have a table which have 2 fields, one of those is the primary key, the other is the description.
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Knowing the Primary Key Sequence Generator of a table

Hello All,
I'm working on an application that uses Oracle toplinks/JPA for persistence. The entity classes in the application have primary key fields with annotations @Id and @GeneratedValue(strategy = GenerationType.AUTO). Per our understanding, this means the primary key generation is done by JPA/Top-links. When we see our database, we notice only one SEQUENCE table available and that table has only one row, while in the application, we are getting different sequence numbers for the primary key of each entity. So, not clear on how this sequence number is generated. Could anybody share information on where the sequence number is stored for each entity/table? Really appreciate your help here. Our database is MSSQL.
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Hi,
I'm trying to join TEST.SUMMARY.NUMBER to TEST.RESPONSE.FOREIGN_KEY. The problem arises from the first of these, as the primary key is in a column NUMBER. Stupid? Definitely. Rename? Not an option.
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The database is oracle, and universe is on BusinessObjecs XI 3.1. I've tried to join in the edit join, create a derived table and use ANSI92. No good so far. I also tried to join the fields on report (WebI), but the result was always too many or not enough data from one of the tables. Merging dimensions leads to other problems. I was checking on JOIN_BY_SQL as well as PARSE_SELECT_IN_JOIN in universe parameters, but at glance I didn't find how to solve this with them.
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Well, I managed to sort this out somehow by using custom SQL in the Web Intelligence report, and joining the tables there with
LEFT JOIN TEST.RESPONSE
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DBMS_CDC find only the columns that are changed along with the primary key in the table

Hello,
We are having a requirement to find the change data in the production environment.
We are planning to use the DBMS_CDC utility.
But for example in the create change table 1 picked emp_id,ename, address, salary,dob.
I have a sample data of
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ename
address
salary
DOB
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2
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Hello,
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AND a.table_name = :table_name
AND a.constraint_type = 'P'
AND b.r_constraint_name = a.constraint_name
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Populate the foreign key automatically

HI All!
I have a form in which there are two data blocks One is emp_master and other is salary_details.I have a foreign key salary_code in Emp_master and similarly Salary_code as primary key in salary details.I have used two list item in place of Emp_id and Salary_code.I want that when I select the emp_id as 10 from the list automatically salary_code list item should get populated by 1 item in the list item.Similary the rest should follow .Please someone look into this matter it would be a gr8t help to me.
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Abha,
I would not use list items for this. Instead, use a multi-record text box with a scroll bar. It looks and behaves like a t-list, but is much easier to code and manage.
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Also see
http://www.oracle.com/technology/obe/obe_as_10g/bi/forms/formsmasterdetailobe.htm

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Hi,
I'm using a servlet to input data froma n html form ,into an ACCESS Database.I'm using SQL statements i t he servlet ,and i'm confronted with the question:
ALL database records are indexed with B_ID as the "Primary Key".
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Access has a datatype claus for this autoincrement feature.
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Hi OAF Gurus,
Currently we are implementing R12 Upgrade , for this we have deployed all the custom OAF Application related files on to the the respective JAVA_TOP folder.
We have a custom municipal postal application which tracks the Postal Details.
The page runs perfectly fine without any error in 11i instance, but the same is erroring out In R12.
In R12 it shows an error as Too many objects match the primary key oracle.jbo.Key[112010 2014-10-01]
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We have a custom table as xxad_postal_codes_f (Date Track table)which contains the postal_code_id and effective_start_date (primary key is combination of postal_code_id and effective_start_date ).
The Table already contains a row for postal_code_id = 112010 and Effective_Start_date = Sysdate.
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at the time of save we are getting an error as Too many objects match the primary key oracle.jbo.Key[112010 2014-10-01]
The table doesn't contain any of the data mentioned ([112010 2014-10-01]) at the time of insertion, hence there should not be any duplication of primary key but still we are getting the error.
Please let us know how can we handle this..?
Below is the code which is getting called on Click of Save button of PostCodeChangePG
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Code in PCodeCoWorkerBase
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Code in Application Module
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Code in PCodeAmWorker
public Serializable[] insertMajorChange ( String postalCodeId, Date date )
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PCodesVO() is based on PostalCodeEO
below is the code from PostalCodeEOImpl
public void create(AttributeList attributeList)
    // NOTE: This call will set attribute values if the entity object is created with a call to vo.createAndInitRow(..)
    super.create(attributeList);
    if (getPostalCodeId() == null)
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    if (getEffectiveStartDate() == null)
      setEffectiveStartDate(getOADBTransaction().getCurrentDBDate());
After diagnosing the issue we found that the error is on the code of AMworker file while creating a new row PCodesVORowImpl newRow = (PCodesVORowImpl) viewObject.createAndInitRow(currentRow);
we tried so many things such as clearing entity cache, VO cache, validating for duplicate primary key but still not able to resolved this.
Please advice how to insert a new row on the PCodesVORowImpl without any exception.
Thanks,
Pallavi

Hi ,
One question here , if you are udating a existing record then why you are trying to create a new row
PCodesVORowImpl newRow = (PCodesVORowImpl) viewObject.createAndInitRow(currentRow);
Thanks
Pratap

Generate the primary key automatically while records are saved

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