@ManyToOne with Composite Id with AUTO increment

Hi ,
Below is scenario where i am facing issue. Please let me know your suggestions.
Tables :
OriginalWork - original_work_id, other columns
Subwork - original_work_id, seq_number, other columns
primary key (original_work_id, seq_number) -- composite key
original_work_id in subwork needs to populated from original_work_id in OriginalWork
and
seq_number must be incremented by 1 automatically.
OriginalWork can have many Subwork
(one to many)
Configurations in subwork :
@Id
@ManyToOne(fetch=FetchType.LAZY)
@JoinColumn(name=" original_work_id ")
private Originalwork originalwork;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private long seq_number;
I tried using embeddedId , but did not work.
The above configuration is not working and exception is java.sql.SQLSyntaxErrorException: ORA-02289: sequence does not exist
This is not thing do with the privileges as I am able to access the sequence.
Please clarify.
Thanks.

I think you might be jumping ahead here, as the exception states there is a problem with sequencing - not the ManyToOne relationship. First step would be to find out which entity has the issue with sequencing - is it OriginalWork or SubWork. You might try a simple test where both have a simple pk using sequencing. I don't think it is the Subwork entity, as per http://wiki.eclipse.org/EclipseLink/Examples/JPA/PrimaryKey generation mode auto should default to Table sequencing in EclipseLink - the error would be different.
Looking at the model, this should work as long as Subwork has either an embeddedId class or a PK class defined. Best bet since you are using a relationship mapping in the composite PK is to use a PK class with a long seq_number; and long originalwork; assuming OriginalWork's id is of type long as well.
Best Regards,
Chris

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CMP with auto-increment primary key.Please help

Hi all,
I new with EJB technology so please bear with me.
Env: 2k Server, SQL 2k Server
Sun One(Forte EE) to develop and deploy CMP
I got the servlet to load the data from CMP's business mehods
is fine. Calling the findPrimaryKey is OK too. Even when I try to insert the row into DB is OK. At this time I make key PK is int AND NOT
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I called setPK, setName ...It's fine.
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modify the SQL statement under SQL Deployment.createRow not taking the PK. I thought that will do it but it doesnot like it at all (I got Exception with transaction rollback)I just want to insert a single row with ID and name that's all.
Then I changed the SQL statment take PK and changed the Auto Generate SQL to True and in ejbCreate the PK as one of the args and called setPK this time with null object. It doesn't like neither.(Exception Cannot set the primary key with null. That is reasonable.)
I thought using EJB fast and clean technique would help developer to develop application with easiness.
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Am I missing something with this? May be just config thing to tell
that my PK is auto-increment field so that when the ejbCreate called it knows not taking the PK or even not asking to call setPK in ejbCreate.
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Check out this thread, there's a bunch of good info:
http://www.theserverside.com/patterns/thread.jsp?thread_id=4976

LINQ: Update a column with auto increment value

Hi All,
Greetings.
I am very new to C# (though with lot of experience in VC++). Now a days, I am engaged in a C# project where I need to deal with ADO.NET DataTable and related classes. I am stuck up in a scenario as follows:
I have a data table (of DataTable type) pre-populated with many rows (50000+), parsed from a log file. Now I need to add a column that will be holding index number for each records; eg. 1, 2, 3......
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Is there any LINQ query that I can run to update the DataTable at once? Or foreach loop per DataRow is the only option here?
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You should add the auto increment column to the DataTable before you pouplate it with the other data:
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DataTable dt = new DataTable();
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column.DataType = System.Type.GetType("System.Int32");
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column.AutoIncrementStep = 1;
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//3. Fill the dataTable using an SqlDataAdapter or whatever
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dt.Rows.Add("2");
dt.Rows.Add("3");
dt.Rows.Add("4");
Then you don't have to add the "auto incremented" values yourself in some kind of a loop (using for example LINQ or foreach).
If you want to know how to poplulate the DataTable from a database query using an adapter, please refer to the following page:
http://www.dotnetperls.com/sqldataadapter
Hope that helps.
Please remember to mark helpful posts as answer to close your threads and then start a new thread if you have a new question.

Insert data into Access with Auto-Increment column

Is there anyone out there that has come across this problem I am experiencing?
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First, please pay attention to the forum in which you are posting. This particular post would be more appropriate to tsql rather than datamining. Second, what specific problem are you trying to solve. The code you posted appears to be
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When opening an InfoPath form InfoPath states "list does not exist" in production, opens fine in test. NaN issue with Auto Increment

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prod links.
Also make sure that user is having at least read permission to that list to access data so verify this also.
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Hemendra:Yesterday is just a memory,Tomorrow we may never see<br/> Please remember to mark the replies as answers if they help and unmark them if they provide no help

CMP with Auto-increment Primary Key problem

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2. delete any business methods that you might have for the field
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Exception Details: java.lang.RuntimeException
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The following excerpts are from http://blogs.sun.com/roller/page/jfbrown?entry=using_creator_to_insert_into. Do they help?
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Primary key column auto increment

Hello,
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Hello ,
you can see this thread :
http://stackoverflow.com/questions/17012339/windows-azure-sql-database-identity-auto-increment-column-skips-values
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Regards

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SHort of paying someone else to do the work for you I am afraid there is no shortcut.
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http://download.oracle.com/docs/cd/E10316_01/cs/cs_doc_10/documentation/developer/sdk_getting_started_10en.pdf
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hi
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How can I use a mySQL database schema with numeric auto increment primary key instead of GUID?

Hello!
I'm using the TestStand "MySQL Insert (NI)" database schema with GUID as primary key. So everything works fine.
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~
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~
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Hibernate data insertion not working with oracle auto increment

hi i have created a table and the id is set to auto increment by a sequence trigger pair
when i manually giving value to id its working fine
but when i tried without maually giving the id i am getting this error
org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save(): com.pojo.Example
at org.hibernate.id.Assigned.generate(Assigned.java:33)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:99)
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at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:172)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:535)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:523)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:519)
at hibernetsample.Main.main(Main.java:30)

>
hi i have created a table and the id is set to auto increment by a sequence trigger pair
when i manually giving value to id its working fine
but when i tried without maually giving the id i am getting this error
org.hibernate.id.Assigned
>
That is because you are using the hibernate 'assigned' generator which, by definition
>
lets the application to assign an identifier to the object before save() is called.
This is the default strategy if no <generator> element is specified.
>
For your use case you can use the 'sequence' generator.
The valid generator options and one way to use a sequence generator is shown in this article
http://www.hibernate-training-guide.com/identifiers-generators.html
The hibernate section of this article also uses a trigger with sequence generator
http://blog.lishman.com/2009/02/auto-generated-primary-keys-in-oracle.html
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Thanks in Advance,
Craig

Really close,
Here is what I have.
I started out with 84573410001
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Edited by: Craig Spehar on May 18, 2009 4:25 PM

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I always get this runtime exception: *java.sql.SQLException: [Microsoft][ODBC Microsoft Access Driver] Syntax error in field definition*; and AUTO_INCREMENT is the problem. I've tried all variations like AUTO, INCREMENT, AUTOINCREMENT and such, but nothing works.
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@ManyToOne with Composite Id with AUTO increment

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