Issue in ESB Database Adapter

hi
I have a requirement where the database adapter has to poll for a particular status like NOT STARTED in table and
based on the status change it should trigger a service asynchronously and then it should immediately update the
status as STARTED.
The configuration steps done in the wizard:
Step 3 - Poll for New or Changed records in a Table
Step 7 - we selected the operation to perform after the data is read from the database, and Update the Field in the table
Step - 8 we Selected the Logical Field as table Column Status and
Read Value: STARTED and Unread Value : NOT STARTED
Database Rows per Transaction is Unlimited and also delay commit, Distributed Polling and Poll for child Updates are
not selected.
The database adapter is not stable at some point of time, it is not updating the status from NOT STARTED to
STARTED after invoking the service asynchronously. Hence the whole process is repeating after some
time interval because of the status remaining as NOT STARTED.
Thanks

Hi,
No it is not a bug, I think. If you created your query by choosing from imported tables/views and related those using the wizard, the only way to change them is to re-import the tables and basically redefine your database adapter.
It's a pity, but that's how it is (also in 10.1.2 I saw recently).
Regards,
Martien

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Null/Empty Strings use in ESB Database Adapter

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I'm trying to use a database adapter to execute an update on a table with a composite primary key; one of the primary key columns sometimes contains an empty string, however whenever I try to call the adapter, it always converts this to a null value. Is there an easy way to force the adapter to use an empty string instead of a null?
Thanks.

the idea here is to execute the dbms statement, or the setpolicycontext statement in a db session, and being able to execute the next sql statement in the same db session.
This is possible with consecutive database adapters sharing the same db session.
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Hope this helps,
Write back in case you need more info.

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hi,
i am using the dbadapter to insert the data into the table successfully.
The problem is when i am using a db adapter it doesnot include a response element in its wsdl.I want to send a response to the client as and when the data got inserted from the dbadapter for that transaction.
i tried using the pl/sql procedure with a out parameter which returns the response but the problem is the pl/sql is called by adapter only once though i am using for each constructor.
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Although not the cleanest solution, but can't you create another routing service which defines a request (equal to the request element of the original routing service) and reply element (defining a single element called success or something).
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Regards, Ronald

Database Adapter using Logical Delete Polling Strategy not updating field

I have an ESB database adapter defined against a table. The adapter is set to use the Logical Delete Polling Strategy, and the table has an extra column defined as the "delete" field. When I register the adapter to the ESB and add a record to the table, the adapter reads the contents of the record as expected. However, 15 seconds later (that being the polling interval) it reads it again, and again 15 seconds after that, ad infinitum.
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Here is the adapter WSDL:
<?xml version="1.0" encoding="UTF-8"?>
<definitions
name="Poll_PM_LOG"
targetNamespace="http://xmlns.oracle.com/pcbpel/adapter/db/Poll_PM_LOG/"
xmlns:tns="http://xmlns.oracle.com/pcbpel/adapter/db/Poll_PM_LOG/"
xmlns:plt="http://schemas.xmlsoap.org/ws/2003/05/partner-link/"
xmlns:jca="http://xmlns.oracle.com/pcbpel/wsdl/jca/"
xmlns:pc="http://xmlns.oracle.com/pcbpel/"
xmlns:top="http://xmlns.oracle.com/pcbpel/adapter/db/top/PollPMLOG"
xmlns="http://schemas.xmlsoap.org/wsdl/">
<types>
<schema xmlns="http://www.w3.org/2001/XMLSchema">
<import namespace="http://xmlns.oracle.com/pcbpel/adapter/db/top/PollPMLOG"
schemaLocation="PollPMLOG_table.xsd"/>
</schema>
</types>
<message name="LogCollection_msg">
<part name="LogCollection" element="top:LogCollection"/>
</message>
<portType name="Poll_PM_LOG_ptt">
<operation name="receive">
<input message="tns:LogCollection_msg"/>
</operation>
</portType>
<binding name="Poll_PM_LOG_binding" type="tns:Poll_PM_LOG_ptt">
<pc:inbound_binding/>
<operation name="receive">
<jca:operation
ActivationSpec="oracle.tip.adapter.db.DBActivationSpec"
DescriptorName="PollPMLOG.Log"
QueryName="Poll_PM_LOG"
PollingStrategyName="LogicalDeletePollingStrategy"
MarkReadFieldName="PROCESSED"
MarkReadValue="T"
SequencingFieldName="ID"
MaxRaiseSize="1"
MaxTransactionSize="unlimited"
PollingInterval="15"
NumberOfThreads="1"
UseBatchDestroy="false"
ReturnSingleResultSet="false"
MappingsMetaDataURL="PollPMLOG_toplink_mappings.xml" />
<input/>
</operation>
</binding>
<service name="Poll_PM_LOG">
<port name="Poll_PM_LOG_pt" binding="tns:Poll_PM_LOG_binding">
<jca:address location="eis/DB/PM"
UIConnectionName="PM"
ManagedConnectionFactory="oracle.tip.adapter.db.DBManagedConnectionFactory"
/>
</port>
</service>
<plt:partnerLinkType name="Poll_PM_LOG_plt" >
<plt:role name="Poll_PM_LOG_role" >
<plt:portType name="tns:Poll_PM_LOG_ptt" />
</plt:role>
</plt:partnerLinkType>
</definitions>
The field PROCESSED is defined as CHAR(1), and is normally null when a record is inserted. The value of the field is to be set to 'T' when the record is read by the polling adapter.

Database Adapter not working properly for more input parameters in OSM

Hi,
We are using OSM 7.0.0.3 and using design studio for development.
Recently we are facing issue with the database adapter.In Studio,we have options for configuring the JDBC adapter.
we have custom table in the database which has four columns with it.we are suppose to retrieve this table data using database adpater.
so,whats happening here is,when we are sending two parameters as input to database adapter,we are able to retrive the table data properly.
but,
when we are sending morethan two parameters as input adapter,it is not giving right results.
so,
is there any constarint on how many parameters to be send as inut to adapter???
any opinoin on first look at the issue??i will share the sample code if needed.

Hi Naidu,
OSM 7.0.0.3 is a very old version and they are many fixes on top of it. So request you to please use any of the latest versions of OSM 7.0.1/7.0.2/7.0.3 and retest the issue. We are not giving any patches on top of OSM 7.0.0. You can also raise a service request for further investigation and analysis.
Regards,
JP

Mapping Routing service with a database adapter in ESB

Hi,
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Adapters may have been tesed under load but messages are kept small. Of you adapter keep your messages as small as possible. Try and keep messages under 1MB, if possible.
If you know Apps will I would stick to using the DB adapter for calling APIs, and Apps adapter for the more complex integrations, e.g. business events, xml gateway. I use DB adapter for concurrent programs, but the apps adapter is good for these integrations as well.
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If you are in evaluation stage of products I would recommend Oracle Data Integrator for eBusiness Suite integration if you are implementing batch type interfaces. This is because of the inbuild error handling. It manages batch messages much better. Whereas SOA Suite is designed for single messages so it manges small messages well.
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cheers
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Hi all,
When i try to query the table using the Database adapter , i m getting the following error message
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Thanks in Advance,
Karthik

Hi-
Is the Database and Weblogic installed on same machine ??
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I recently created a bpel flow containing a database adapter where I completed all the steps through to completion. Since then, when I attempt to review the adapter by double-clicking on it and then click on "Define Adapter Service", then when I step through to the "Adapter Config. Wizard - Select Table" I am told :
'No Tables Imported'.
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* under "Application Sources->TopLink" again I see a reference to the adapter
* under "Integration Content", there is another reference to the adapter, which contains :
- wsdl, xsd & toplink mappings xml
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Anit

Hi,
No it is not a bug, I think. If you created your query by choosing from imported tables/views and related those using the wizard, the only way to change them is to re-import the tables and basically redefine your database adapter.
It's a pity, but that's how it is (also in 10.1.2 I saw recently).
Regards,
Martien

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I have also tried FND_GLOBAL.APPS_INITIALIZE procedure to effectively 'log on' to the EBS but this returns an error. The same wrapper package called directly from SQL*Plus works perfectly (where USERENV LANG is US). Solutions welcome !

The issue was resolved by adding the following to the start of the wrapper procedure:
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Database Adapter and SQL Server procedure issue

Hello,
I am using Jdev 11.1.1.7.0 and SQL Server 2005.
In the Database Adapter configuration wizard, Specify Stored Procedure step, I choose the “GEACupax” schema and got the following error after a click on “Procedure Browse” button:
com.microsoft.sqlserver.jdbc.SQLServerException: Invalid object name 'GEACUPAX.INFORMATION_SCHEMA.SCHEMATA'.
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(from jdev log:) select schema_name from GEACUPAX.INFORMATION_SCHEMA.SCHEMATA order by schema_name;
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Any ideas?
Leandro.

Vijay,
Thanks for you reply.
I figure out a related bug:
Bug 12859472: Cannot browse store procedure in case-sensitive MS SQL Database
There are two possible workarounds:
1. Use a database name with capital letters
2. Do not use stored procedures, but access the tables directly.
The notes on the Bug ticket describes that the issue would be scheduled to be fixed in PS7 which is 11.1.1.8.
Cheers!
Leandro.

JCA database adapter issue due to database schema dependency

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I am using the JCA database adapter to call a stored procedure. The adapter uses the database schema name while calling the Stored procedure. The schema name is added in the namespace of XSD, wsdl files.
If I have to use a different database schema name, how can I update the existing code without much modification.
Thanks!

Thanks for your reply Prabhu.
But the modification in JCA file is resulting in the following Exception.
I think this change has resulted in references related issue. Please let me know if any further changes are required.
<> <Error> <oracle.soa.adapter> <BEA-000000> <JCABinding=> Could not invoke operation against the 'Database Adapter' due to:
BINDING.JCA-11811
Stored procedure invocation error.
Error while trying to prepare and execute the old_schema_name.stored_procedure_name.
An error occurred while preparing and executing the old_schema_name.stored_procedure_name.
API. Cause: java.sql.SQLException: ORA-06550: line 1, column 7:
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must be declared
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Hi there,
I have a very simple BPEL process which just use Database Adapter to response result from one table, every thing works ok but a column with 'ROWID' datatype get a wrong data.
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Any ideas?

Hi AJ,
Thanks for your reply.
In fact, i can't remove the ROWID type column. it is very important for business logic, the table is hosted on third party database, i have no right to do any change.
below is the table struct:
table PULL_STOCK_TRANSFER
ISSUE_PLANT NOT NULL VARCHAR2(4)
RCVNG_PLANT NOT NULL VARCHAR2(4)
ISSUE_DATE NOT NULL DATE
PART_CODE NOT NULL VARCHAR2(18)
QUANTITY NOT NULL NUMBER(13,3)
FLAG CHAR(1)
PROCESSED CHAR(1)
REMARKS VARCHAR2(200)
TRACKING_ID ROWID
ISSUE_LOCATION NOT NULL VARCHAR2(2)
RCVNG_LOCATION NOT NULL VARCHAR2(2)
And there have no problem on 10g.
So any ideas?
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Database adapter exception handling

Using Database adapter in ESB process that polls using DeletePolling strategy.
On hitting exception due to some date format issue the adapter stops polling and the polling resumes only after identifying and removing the faulty record from the table.
We have to do manual process of identifying the faulty records, since the error is not reported in any of the log files.
Can configure to log this type of error?
Would any rejection handling work in this case?
Using Oracle ESB 10.1.3.4

When records are inserted into the table, then the date format will be of sql type which is supported by db adapter. This might not be causing the issue. I hope you don't have a scenario where db adapter is updating a record through it's logical delete strategy and the same record is updated by another service. This would result in stopping db adapter polling. Provide the log trace for this. You can change the mode to trace-32 at soa.adapter level in em console.
HTH.
-Sriharish.

Logical delete in database adapter

Hello
I was wondering if someone has solution the problem with polling database. You can specify the logical delete column and you can give values for READ, UNREAD and RESERVED states. The problem is that when for example ESB project polls some specific table and starts an instance for every new row with specified logical delete field with value UNREAD, when something unexpected happens and something goes wrong the database adapter updates the row with READ value. This is problematic if we have thousands of rows, and we would like to separate the errored rows from the successfully read rows. Is there anyway (easy) way to update those rows that went wrong to some other value than READ?
I don't know if anyone understood me, but just for clarification here's a example:
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Hope I was able to clarify the problem... And I hope someone could be able to provide me with answer.
Best Regards Tuomas

Did you use the RESERVED value property? How about the transaction mechanism? Do you have global transactions? I gues you would have to use them!

Error while invoking custom API using Database Adapter

Hi,
I've a requirement where in I need to fetch the data returned by a recordtype of a custom API. I've implemented this by invoking the custom API using Database Adapter. I'm facing a problem while performing this.
The custom API holds the signature as:
PROCEDURE EMP_DET
Argument Name Type      In/Out Default?
P_DEPTNO NUMBER IN
L_LINE_TBL TABLE OF RECORD OUT
I've a schema with which it needs to be validated. It looks like:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:po="http://www.mycompany.com/ns/sales" targetNamespace="http://www.mycompany.com/ns/sales" elementFormDefault="qualified">
<element name="EmployeeDetails">
<complexType>
<sequence>
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</complexType>
</element>
</schema>
I did a transformation to the above stated Emp.xsd with the xsd created for my custom API by the BPEL process. I could create the process and deploy successfully, but while invoking I get the following error. (I'm using BPM 10.1.3.1 with JDev 10.1.3.1)
<remoteFault xmlns="http://schemas.oracle.com/bpel/extension"><part name="code"><code>6502</code>
</part><part name="summary"><summary>file:/D:/OraBPEL/bpel/domains/default/tmp/.bpel_my_poc_1.0_16c5d0f7b937c780d27d8975726a15cb.tmp/emp_details.wsdl [ emp_details_ptt::emp_details(InputParameters,OutputParameters) ] - WSIF JCA Execute of operation 'emp_details' failed due to: Error while trying to prepare and execute an API.
An error occurred while preparing and executing the SCOTT.BPEL_EMP_DETAILS.EMP_PKG$EMP_DET API. Cause: java.sql.SQLException: ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at line 1
[Caused by: ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at line 1
; nested exception is:
     ORABPEL-11811
Error while trying to prepare and execute an API.
An error occurred while preparing and executing the SCOTT.BPEL_EMP_DETAILS.EMP_PKG$EMP_DET API. Cause: java.sql.SQLException: ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at line 1
[Caused by: ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at line 1
Check to ensure that the API is defined in the database and that the parameters match the signature of the API. Contact oracle support if error is not fixable.
</summary>
</part><part name="detail"><detail>
Internal Exception: java.sql.SQLException: ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at line 1
Error Code: 6502</detail>
</part></remoteFault>
Can someone let me know as to why I'm getting this error? Also lemme know if such an approach is valid to do, if not please suggest me alternate methods to do this.
Thanks in advance,
Gayathri

The 'numeric or value error' is one we have seen many times. The problem has been identified and fixed. Refer to this thread for more information.
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