Error: has no primary key specified. It should define either an @Id, @Embed

I'm using toplink with JPA. it was able to deploy to OC4J succesfully. however, when I deploy to oracle application server 10.1.3, I got the following error:
has no primary key specified. It should define either an @Id, @EmbeddedId or an @IdClass.
I do have @Id defined for id property. I tried to move @Id annotation to getId() method, instead of id property, the deployment succesfully.
I have many entities need to be changed. i'm wndoring if there is configuration or if it is bug of OAS 10.1.3

Hello,
You haven't mentioned which version of OC4J you are successfully deploying to. If it is not 10.1.3, then you might try upgrading your OAS server so that its version matches the OC4J version you are using. OAS 10.1.3 only had very limited JPA support, and so it is advisable to use OAS 10.1.3.3 anyway.
Best regards,
Chris

Similar Messages

Exception Description: Entity class [] has no primary key....

Received the following error in jdeveloper - some info on how to fix would be greatly appreciated
[EclipseLink/JPA Client] Adding Java options: -javaagent:C:\oracle\MiddlewareNew\jdeveloper\modules\oracle.toplink_11.1.1\eclipselink.jar
C:\Oracle\MiddlewareNew\jdk160_05\bin\javaw.exe -client -classpath C:\JDeveloper\mywork\APP_CM_AUTONUM_GEN\.adf;C:\JDeveloper\mywork\APP_CM_AUTONUM_GEN\SAM_CM_AUTONUM_GEN\classes;C:\oracle\MiddlewareNew\jdeveloper\modules\oracle.toplink_11.1.1\toplink.jar;C:\oracle\MiddlewareNew\jdeveloper\modules\oracle.toplink_11.1.1\antlr.jar;C:\oracle\MiddlewareNew\modules\com.bea.core.antlr.runtime_2.7.7.jar;C:\oracle\MiddlewareNew\modules\javax.persistence_1.0.0.0_1-0.jar;C:\oracle\MiddlewareNew\jdeveloper\modules\oracle.toplink_11.1.1\eclipselink.jar;C:\oracle\MiddlewareNew\jdeveloper\modules\oracle.xdk_11.1.1\xmlparserv2.jar;C:\oracle\MiddlewareNew\jdeveloper\modules\oracle.xdk_11.1.1\xml.jar;C:\oracle\MiddlewareNew\modules\javax.jsf_1.2.0.0.jar;C:\oracle\MiddlewareNew\modules\javax.ejb_3.0.1.jar;C:\oracle\MiddlewareNew\modules\javax.enterprise.deploy_1.2.jar;C:\oracle\MiddlewareNew\modules\javax.interceptor_1.0.jar;C:\oracle\MiddlewareNew\modules\javax.jms_1.1.1.jar;C:\oracle\MiddlewareNew\modules\javax.jsp_1.1.0.0_2-1.jar;C:\oracle\MiddlewareNew\modules\javax.jws_2.0.jar;C:\oracle\MiddlewareNew\modules\javax.activation_1.1.0.0_1-1.jar;C:\oracle\MiddlewareNew\modules\javax.mail_1.1.0.0_1-1.jar;C:\oracle\MiddlewareNew\modules\javax.xml.soap_1.3.1.0.jar;C:\oracle\MiddlewareNew\modules\javax.xml.rpc_1.2.1.jar;C:\oracle\MiddlewareNew\modules\javax.xml.ws_2.1.1.jar;C:\oracle\MiddlewareNew\modules\javax.management.j2ee_1.0.jar;C:\oracle\MiddlewareNew\modules\javax.resource_1.5.1.jar;C:\oracle\MiddlewareNew\modules\javax.servlet_1.0.0.0_2-5.jar;C:\oracle\MiddlewareNew\modules\javax.transaction_1.0.0.0_1-1.jar;C:\oracle\MiddlewareNew\modules\javax.xml.stream_1.1.1.0.jar;C:\oracle\MiddlewareNew\modules\javax.security.jacc_1.0.0.0_1-1.jar;C:\oracle\MiddlewareNew\modules\javax.xml.registry_1.0.0.0_1-0.jar;C:\oracle\MiddlewareNew\wlserver_10.3\server\lib\weblogic.jar -javaagent:C:\oracle\MiddlewareNew\jdeveloper\modules\oracle.toplink_11.1.1\eclipselink.jar SAM.CMAUTONUMGENClient
java.lang.reflect.InvocationTargetException
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:323)
     at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:338)
Caused by: java.lang.reflect.InvocationTargetException
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at org.eclipse.persistence.internal.jpa.deployment.JavaSECMPInitializerAgent.initializeFromAgent(JavaSECMPInitializerAgent.java:45)
     at org.eclipse.persistence.internal.jpa.deployment.JavaSECMPInitializerAgent.premain(JavaSECMPInitializerAgent.java:38)
     ... 6 more
Caused by: javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse Persistence Services - 1.0.2 (Build 20081024)): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit [SAM_CM_AUTONUM_GEN] failed.
Internal Exception: Exception [EclipseLink-7161] (Eclipse Persistence Services - 1.0.2 (Build 20081024)): org.eclipse.persistence.exceptions.ValidationException
Exception Description: Entity class [class oracle.SamCmAutonumGen] has no primary key specified. It should define either an @Id, @EmbeddedId or an @IdClass. If you have defined PK using any of these annotations then please make sure that you do not have mixed access-type (both fields and properties annotated) in your entity class hierarchy.
     at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:870)
     at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.callPredeploy(JPAInitializer.java:101)
     at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.initPersistenceUnits(JPAInitializer.java:149)
     at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.initialize(JPAInitializer.java:135)
     at org.eclipse.persistence.internal.jpa.deployment.JavaSECMPInitializer.initializeFromAgent(JavaSECMPInitializer.java:145)
     ... 12 more
Caused by: Exception [EclipseLink-28018] (Eclipse Persistence Services - 1.0.2 (Build 20081024)): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit [SAM_CM_AUTONUM_GEN] failed.
Internal Exception: Exception [EclipseLink-7161] (Eclipse Persistence Services - 1.0.2 (Build 20081024)): org.eclipse.persistence.exceptions.ValidationException
Exception Description: Entity class [class oracle.SamCmAutonumGen] has no primary key specified. It should define either an @Id, @EmbeddedId or an @IdClass. If you have defined PK using any of these annotations then please make sure that you do not have mixed access-type (both fields and properties annotated) in your entity class hierarchy.
     at org.eclipse.persistence.exceptions.EntityManagerSetupException.predeployFailed(EntityManagerSetupException.java:210)
     ... 17 more
Caused by: Exception [EclipseLink-7161] (Eclipse Persistence Services - 1.0.2 (Build 20081024)): org.eclipse.persistence.exceptions.ValidationException
Exception Description: Entity class [class oracle.SamCmAutonumGen] has no primary key specified. It should define either an @Id, @EmbeddedId or an @IdClass. If you have defined PK using any of these annotations then please make sure that you do not have mixed access-type (both fields and properties annotated) in your entity class hierarchy.
     at org.eclipse.persistence.exceptions.ValidationException.noPrimaryKeyAnnotationsFound(ValidationException.java:1245)
     at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.validatePrimaryKey(EntityAccessor.java:1173)
     at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.process(EntityAccessor.java:486)
     at org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.processORMMetadata(MetadataProcessor.java:443)
FATAL ERROR in native method: processing of -javaagent failed
     at org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processORMetadata(PersistenceUnitProcessor.java:303)
     at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:830)
     ... 16 more
Exception in thread "main" Process exited with exit code 1.

Hi,
you may want to try the J2EE forum here on OTN in case you don't get a sufficient answer to the problem.
Frank

ADF, EJB: "No primary key specified"

In jdeveloper 10.1.3.1, I am trying to create a very simple form: I have a table with a primary key. I create an application with a JSF page on which I create an input form, as described in "Developer’s Guide For Forms/4GL Developers", section "13.6 Creating an Input Form". Then I try to run it and get the following error:
Exception Description: Entity class [class orchids.datamodel.Objects] has no primary key specified. It should define either an @Id, @EmbeddedId or an @IdClass.
- so what am I doing wrong? Isn't it enough to have a primary key constraint on the table?

Hello,
You haven't mentioned which version of OC4J you are successfully deploying to. If it is not 10.1.3, then you might try upgrading your OAS server so that its version matches the OC4J version you are using. OAS 10.1.3 only had very limited JPA support, and so it is advisable to use OAS 10.1.3.3 anyway.
Best regards,
Chris

How to make a form using a wizard when the table has no primary key ?

Hi,
I want to make a form to update, delete a table. The table has no primary key. The problem is that the Wizard ask for a primary key.
How to avoid using a primary key ? i mean I don't want to create a primary key if is is possible.
I would like to use the wizard; is it possible ?
Thank you for your kind answers.
Christian

I believe the key is choosing 'Interactive' as opposed to 'Classic' in the implementation and then you can choose 'Existing Trigger' for the primary key source and it should work to use an existing column as your proimary key.

Creating an EJB that has no primary key

I want to create an EJB for a table that has no primary key using
J-developer but I get an error like this :
"cmp-field of type 'java.lang.Long' does not have a no-arg constructor which is needed for properties/fields based mapping"
How can I go on?

Sorry primitives are NOT allowed to be primary Key candidates - OOPS!
it looks like you may have to use String
or provide your own Primary Key class which (perhaps) extends Long

Need to create form on a table with report with a table has NO primary key

Hi, I tried to created some insert/update/delete form+report in an application, it works fine only if the table has primary key. Does anyone know how to create the same functionality with a table with no primary key? I saw an application is built on older version of htmldb that is using tables with no primary keys at all.
Here are the specific issues that I am facing:
- I am building some Form on a table with Report, it requires the table with primary key for form to update. Is there a workaround that I can use tables that has no primary keys at all?
- Say if primary key is necessary in the previous report+form, but the maximum number of columns that I can use to composed a primary is only 2 for that Form-Report, I cannot find anything handling > 2 primary key. Do you know if there are some ways to composite a primary key from many columns together?
Your help is really appreciated.
Thanks,
Angela

Sorry to ask response so late. I had no time to get back to that issue before.
Regarding the triggers, I can make it work for the update, but not the insert.
Here is my trigger:
create or replace trigger STATUS_T1
instead of insert on STATUS
begin
insert into STATUS ("LABEL", "AREA", "OWNER", "TEST_NAME", "STATUS", "REMARKS", "BUGS", "DEV_MGR", "TEST_BY_DATE")
values(:new.LABEL, :new.AREA, :new.OWNER, :new.TEST_NAME, :new.STATUS, :new.REMARKS, :new.BUGS, :new.DEV_MGR, :new.TEST_BY_DATE);
end;
by any chance, you can notify what is wrong?
I already skip the ROWID when inserting to the view STATUS, but I cannot figure out what is wrong when inserting a new record to that view.
It gave me the following errors:
ORA-06550: line 1, column 38: PL/SQL: ORA-00904: "ID": invalid identifier ORA-06550: line 1, column 7: PL/SQL: SQL Statement ignored
Error Unable to process row of table STATUS
Then, I turned to debug mode, I am thinking that maybe because I use a HIDDEN item to hold the value of ROW_ID as I use the rowid (called ID in the view) to retrieve the record as a column link from previous page. What do you think?
Thanks again,
Angela

Insert values in multiple tables. One of the tables has complex primary key.

Hello, I am using Jdeveloper version 11.1.2.3.0
I have a table FORM_TYPE and another table Str. The Str table is used to translate strings from the table name which are read from another program from the database and used to generate forms..
The FORM_TYPE table has a relation to the STR table via formtype.title_str_id = str.str_id.
The STR table has a primary key that is depending on mf_language and str_id columns. I generated entity for the STR table but can't insert from the application module new values for some reason... It says the record invalidates its own entity..
I am trying to create a table that will be editable and will have the columns Description, Name, Str in English, Str in French etc...
Want to create a Form_Type and in the same time to insert new values for each language... But can't make the inserts of the new STR work..
Also the FormType.TITLE_STR_ID has many values null already in the database.
SELECT FormType.DESCRIPTION,
       FormType.FORM_TYPE_ID,
       FormType.NAME,
       FormType.PAPER_REPORT_FORMAT,
       FormType.PAPER_REPORT_NAME,
       FormType.TITLE_STR_ID,
       en.str en_str,
       en.str_id,
       en.object_name en_object_name,
       fr.str,
       fr.str_id,
       fr.object_name,
       du.str,
       du.str_id,
       du.object_name,
       bg.str,
       bg.str_id,
       bg.object_name
FROM FORM_TYPE FormType,
(select str.str_id, str.mf_language_id, str.str, str.object_name
from mf_language ml, str
where ml.mf_language_id = str.mf_language_id
and ml.code ='en') en
, (select str.str_id, str.str, str.object_name
from mf_language ml, str
where ml.mf_language_id = str.mf_language_id
and ml.code ='fr') fr,
(select str.str_id,   str.str, str.object_name
from mf_language ml, str
where ml.mf_language_id = str.mf_language_id
and ml.code ='du') du,
(select str.str_id, str.str, str.object_name
from mf_language ml, str
where ml.mf_language_id = str.mf_language_id
and ml.code ='bg') bg
WHERE
formtype.title_str_id = en.str_id and
formtype.title_str_id = fr.str_id and
formtype.title_str_id = du.str_id and
formtype.title_str_id = bg.str_id

Tried that I made view links and associations but still can't insert in both tables at once... Could be because the tables aren't having relationship between them or because the STR table has a (STR_ID, MF_LANGUAGE_ID) primary key...

Error logging on primary key

Hello,
Here is the context :
- The DB (10.2) is in production. I can not disable/drop/alter constraints
- I have to reinject thousands of rows from another DB through database link but some of thoses lines may be rejected by the primary key / unique key in the production DB
- As the row number is very large, I do not want to do the following :
<pre>insert into t_prod ( ...)
select ... from t_remote@db_link
where ...
and .. not in (select ... from t_prod where ..)</pre> ;)
As the constraints are UK/PK, I can not use the error logging in insert statement
As the constraints must be kept enabled, I can not use the exceptions into in an alter constraint statement
Is there any way to avoid the infamous not in select ?
Thanks,
Christian.

I prefere to use the SQL documentation over the Admin Manual (very personal preference). http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/statements_9014.htm#BGBEIACB
Often it is more clear. In this case:
REJECT LIMIT
This clause lets you specify an integer as an upper limit for the number of errors to be logged before the statement terminates and rolls back any changes made by the statement. The default rejection limit is zero. For parallel DML operations, the reject limit is applied to each parallel server.
A reject limit of 0 would be mean, zero errors are logged before the statement terminates and rolls back.
I agree that this is the same as "no error logging". Good thing you pointed this out, I was not aware of it myself.

Problem with inserting into table that has autogenerated primary key

hi
i am working on EJB3.
i am trying to insert object into table.Primary key of table will be generated automatically.I tried following statement for insertion,
em.persistent(customerObj);
but it throw following exception,
javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save(): customer.CustomerInfo
     at org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:69)
     at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83)
     at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
     at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
     at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
     at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
     at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102)
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
     at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
     at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
     at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:211)
     at org.jboss.ejb3.stateless.Stateles
can anyone tell me is there any other way to acheive the same.
i thought of doing using insert query,but i am not sure about the syntax to be used.
could anyone help me ?
thanks in advance...

That's why you should use PreparedStatement instead of Statement. Its setString() method will escape that value for you properly when you bind it.
%

Can we create an APEX Form based on Table which has no Primary Key

Hi,
I have a requirement.
I need to create a FORM based on a table having no Primary Key but it is having Unique Key . I can use Unique Key as an alternate of Primary Key.
but When I tried to create a Form, I got the following message.
Source tables for forms and tabular forms must have a primary key
Thanks,
Deepak

Deepak_J wrote:
Hi,
I have a requirement.
I need to create a FORM based on a table having no Primary Key but it is having Unique Key . I can use Unique Key as an alternate of Primary Key.
but When I tried to create a Form, I got the following message.
Source tables for forms and tabular forms must have a primary key
Thanks,
DeepakGood database design will always require a PK on the tables. There are only very few and rare expetions to this rule. One would be when you have store the data only temporarily in this table, like it is often done for import/loader tables. The data is first loaded in the "import"-table, then validated and then transported to the "real" tables. In such a scenario you can ignore the primary key on purpose. Because you already have a UK on this table it can't be such a scenario.
For most other scenarios you should always add a PK. Ask critically why there is no PK on it. Is there a reason for it or was the table designer just not doing its job well?
Btw: A UK is identical to a PK if the column is mandatory (NOT NULL). In this case you could simply change the constraint from UK to PK.

Unable to create new entry in table that has no primary key

Hi
I have a table which is required to have no primary key (except mandt). After i generate table maintanance, when I go to create new entries, the table control to enter the new values does not appear. When I click on edit->new entries, it goes back to the fields tab of the table. Same when i check through SM30.
If i maintain atleast one primary key, I am able to get the table control in new entries screen. However the requirement permits no primary keys except mandt. How can this be resolved?
Thanks
NM

Hi,
THE PROBLEM WITH UR TABLE IS
YOU HAD DECLARED MANDT AS THE PRIMARY KEY AND THERE IS NO OTHER KEY IN UR TABLE
iT'S NOT ALLOWING YOU TO ADD NEW ENTRIES BECAUSE MANDT IS THE ONLY PRIMARY KEY IN YOUR TABLE AND IT WILL HAVE A DEFAULT VALUE BASED ON THE CLIENT. SO IT'S NOT SHOWING YOU THE CREATE NEW ENTRIES OPTION.
SO TRY TO PUT ONE MORE FIELD AS THE PRIMARY KEY SO THAT YOUR PROBLEM WILL SOLVE VERY EASILY ALSO MAKE SURE THAT TABLE IS ACTIVATED.
REVERT IF U NEED SOME MORE HELP
Thanks &Regards.
Pavan.

Error in dropping primary key constraint after import.

hi all,
i am getting the following probelm can some one help me
Usually if we drop the primary constarint the index created on the primary key will also be drop automatically.when i do export and import of particular schema and after the import if i drop the primary key constraint , the index created on the primary key is still existing .
i am using the oracle 10g database and export and import utility.
i am facing this problem on windows 2003 server
can some one help what was going wrong.
thank you in advance.
kalyan

if you dont want the constraint and index then control it in the import itself.
eg:- imp constraints=n indexes=n
regds,
Thomas.

USE ROWID AS PRIMARY KEY OF ENTITY ON EJB3

When we launch the Create Entities from Tables wizard, and create JPA (Java Persistence API) entities from existing database tables, if the table has no primary key and unique key field, you will get a warning. When you run, you will get the following information:
Caused by: Exception [TOPLINK-7161] (Oracle TopLink Essentials - 2006.8 (Build 060829)): oracle.toplink.essentials.exceptions.ValidationException
Exception Description: Entity class [class model.Test] has no primary key specified. It should define either an @Id, @EmbeddedId or an @IdClass.
Actually, every row of oracle table has a ROWID field , I think it is a good “primary key field”. Add it into Entity Java bean file as following:
@Id
private ROWID rowid;
And generate accessors, ok, run……
GOOD, No problem.
But when you insert a new row, got an exception:
Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2006.8 (Build 060829)): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: ORA-00928: missing SELECT keyword
Error Code: 928
Call:INSERT INTO TEST (ROWID, B, A) VALUES (?, ?, ?)
bind => [null, 555, 555]
Query:InsertObjectQuery(model.Test@40979b)
555~~~, what happened?! Somebody builds a wrong SQL …
Don’t worry! I know (…) where is the “bug”.
Find out the class
oracle.toplink.essentials.internal.expressions. SQLInsertStatement
which is included in the toplink-essentials.jar,
decompile… , fix…, compile, and jar it back.
Fix
if(field.getTable().equals(getTable()) || !field.hasTableName())
to
if((field.getTable().equals(getTable()) || !field.hasTableName()) && !field.getName().equalsIgnoreCase("ROWID"))
OK, it is running well.
I suggest ORACLE fix it into his next version. Do you think it is a good idea?

Do you think it is a good idea? Not really, but that's just my two cents.

Can EJB 3.0 beans be used with tables that do not have a primary key?

Can a EJB 3.0 persistence bean be used with tables that do not have a primary key defined? I am building a test application based on the HowTo - Building EJB 3.0 Faces App paper posted after Openworld (schalk). The issue I am running into when trying to run the application is: Exception Description: Entity class [class com.persistence.Rpthead] has no primary key specified. Note: I get a simular error when using toplink directly.
The tables I am binding to do not have primary keys defined. They use unique constraints to manage the table integrity.
Is it possible to use EJB 3.0 on tables without a primary key? If not, are there plans to support this in the future?

The spec requires a primary key Id annotation. I will take your suggestion to EJB 3.0 expert group.
Can you also send an email to [email protected] with your requirement?
-Debu

Error with Links if using x3 primary keys

Hi Folks:
Here is the error code I'm receiving:
ORA-01422: exact fetch returns more than requested number of rows
Unable to fetch row.
Background: I am using Application Express 3.2
All of the pages I have created that rely on x2 primary keys (first_name, last_name) work fine.
I have a table that has x3 primary keys: Table is called "time_off_awards". The x3 primary keys are: last_name, first_name, approval_date.
I created a report that works properly and lists the awards for each person (each person can receive more than one award-on different dates).
I also created an edit link that works properly IF *(only if)* each individual has only one award. If the individual has more than one award then I get the error above. When I set up the link I used all three keys. The x3 PK's should uniquely identify each row, but if the same last name/first name appear more than once (that is if the person has more than one award) I get the error. I thought at first maybe it was just not reading the 3rd key/part of the link (approval_date), but it shows properly if you move your cursor over the edit link.
Here is a link to a screen pic of how I have my link set in Apex:
[http://www.wczone.com/link_settings.gif]
Here is a link to a pic of the report with some info:
[http://www.wczone.com/report_link.gif]
If needed, here is my table info:
CREATE TABLE PERSONNEL.TIME_OFF_AWARDS (
LAST_NAME VARCHAR2(40) NOT NULL,
FIRST_NAME VARCHAR2(25) NOT NULL,
APPROVAL_DATE DATE NOT NULL,
HOURS_OFF NUMBER(3),
CITATION VARCHAR2(1500),
/* Keys */
PRIMARY KEY (LAST_NAME, FIRST_NAME, APPROVAL_DATE),
/* Foreign keys */
CONSTRAINT TOA_PERSONNEL
FOREIGN KEY (LAST_NAME, FIRST_NAME)
REFERENCES PERSONNEL.MARC_PERSONNEL(LAST_NAME, FIRST_NAME)
TABLESPACE PERSONNEL;
Thanks for any help, I've tried looking at a couple of Apex books, but they didn't help much.
Matt
Edited by: user10495310 on Mar 4, 2009 8:21 AM

Thank you everyone for the help and information you gave to me.
Your ideas and advice helped me to think through the issues involved.
The way i actually found to work around this issue was a little different.
What I did was the following (which may only be usable with empty tables. If its possible to create a new column with a sequence and trigger on a table that already contains data it should work also):
1. I removed the current PK's that were currently set.
2. I added a single, unique PK (that used a sequence and trigger to automatically increment) to the table as was suggested in this thread and other APEX forum threads.
3. I changed the link on the report so that it used the new PK, and also changed the PK used on the forms (under Processes - both the page rendering and page processing processes).
The Difference:
4. Next I changed the table (not by using APEX, but directly) from using the automatically generated ID as the PK, back to using the compound PK (x3 keys). I then added an constraint to make sure that the automatically generated column was unique. So now I have the compound PK that my supervisor wants us to use, and I'm able to use a unique, automatically generated key for APEX to use.
I found also that if you already have a column that uses a unique/auto-generated key you can still use it with APEX without switching keys around.
1. I added the new column to the sql in the reports source section so that the new column was searched (and then used 'hidden' so it wouldn't be displayed on the report users would see).
2. You can still add the unique key under the processes on the form that is being linked too under the Primary key tabs. If its not a PK it won't show up in the pop up which is to the right of "Item Containing Primary Key Column Value" but it can be entered manually (i.e. p23_AUTO_ID) and it will work fine. You would also need to edit your form so that the auto ID that is being passed from the report is part of the form - but hidden if desired).

Error: has no primary key specified. It should define either an @Id, @Embed

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