Batch Updates using JDBC 2.0

Dear all,
I am trying to use a PreparedStatment's batchUpdate() method. Here is the problem.
I get an exception if there is a duplicate entry, and that blows up the entire batch. This leaves me with no room for error checking as to where this error had occurred.
How do I know at which row I got the error? How can I make the batchUpdate() execution to ignore the error and continue?
Thanks,
-rrvvg

This is a case where reading the Java documentation will help you. Here is the link to
int[] executeBatch() throws SQLException.
http://java.sun.com/j2se/1.5.0/docs/api/java/sql/Statement.html#executeBatch()
I know this isn't code showing you how to do it, but I think it does a good job of explaining how to handle your situation. The documentation clearly states that you also need to see the documentation of your specific JDBC driver because Exception behavior is defined by the driver and can be different between vendor offerings..

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Batch Updates Using Oracle

Hi,
We are currently having problems saving data using Weblogic 6.1 sp1 and Oracle
8.1.6. we are using Weblogic JDBC Drivers for Oracle. The data we are saving is to
the extent of 25-50,00 records. When we are trying to this we are getting transaction
timeout errors since this saver process is taking more than 30 seconds which is out
rimeout limit.
Can we do this using Batch updates?? Any code snippets or pointers will be grealty
appreciated.
Thank YOu,
Sanjeev

Can you be more specific?
- What do you want to do exactly?
- What are your OS and Reports versions?
At first, it sounds a bit strange to use Reports for batch updates. A pl/sql procedure may be more suitable.
You can schedule a report in several ways, e.g. via CRON on Unix (see RWRUN command in the 9iDS Help)).
You can do the same via the database using the SRW package (see http://download-west.oracle.com/docs/html/A92102_01/pbr_evnt.htm#1005558 )
You can use the Reports Queue Manager.

Want to save time while doing inserts or updates using JDBC

I want to save time while doing inserts/updates in a database in my Java app. using JDBC. My app. has to do a lot of inserts and that takes up a lot of time.
I can do some buffering and then do bulk/batch inserts if that will help. any pointers on whether this will be useful and how to go about it?
Is there any other way I can save time and thereby improve performance?
I am using Oracle 8 with Oracle thin driver.
Thanks

I tried using the PreparedStatement.addBatch() and PreparedStatement.executeBatch() in a test program.
The error is SQLException - "Unsupported feature" which I get at the addBatch method call. I am using oracle thin driver sdk 8.1.6 for jdk 1.2.x
What is wrong here?
Thanks

JOIN in UPDATE using JDBC receiver

Hi All
The scenarios is as follows :
I have to implement,updation of a flag in a table where the column names in the WHERE clause are from two different tables in the same database.
i.e
UPDATE T1
Set T1.flag =1
where T1.columnA=value1 and T2.columnB=value2
where T1 and T2 are tables in the same database,
and the values (value1 and value 2 ) are provided to XI by SAP based on which the flag need to be updated in T1
one way is to write a stored procedure specifying the join and call it in XI,
I want to accomplish this directly using SQL statement from XI
Is that possible ???
kindly reply
thanks
sd

Hi Sd,
You can execute an SQL statement directly in your Receiver JDBC adapter.
Check this link for that,
http://help.sap.com/saphelp_nw04/helpdata/en/2e/96fd3f2d14e869e10000000a155106/content.htm
Check the part for STATEMENTNAME6 and also the example for that in the same link,
Regards,
Bhavesh

Useing a Idoc an Oracle database Can be update useing JDBC Adapter

Hi Guys,
Can you help me on the above topic..
Regd's
Raj

Hi Raj,
You can use the Idoc Adapter on the sender side and JDBC on the reciever side. After you have configured your scenario, you should be able to write data into the oracle database.
For the strucutre of your Datatype for insertion , just check this link,
http://help.sap.com/saphelp_nw04/helpdata/en/7e/5df96381ec72468a00815dd80f8b63/content.htm
To access any Database from XI, you will have to install the corresponding Driver on your XI server.
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/3867a582-0401-0010-6cbf-9644e49f1a10
Or on the JDBC end you can write a stored procedure to make your data update more efficient.
Go through this blog for stored procedures.
/people/sriram.vasudevan3/blog/2005/02/14/calling-stored-procs-in-maxdb-using-sap-xi
I hope this helps.
Regards,
Abhy

Update in JDBC Sender adapter for more than one table

Dear Friends,
I have to select more than one table in the JDBC sender using the join condition. But i found that update statement is also mandatory in the sender comm channel. I am not going to update any flag after the select but as it is mandatory, i have decided to use the following update statement which wont effect the existing data UPDATE <tablename> set flag = ' ' where flag = ' '.
But in my case i have 3 tables, do i need to update stmts for all the three tables.
if yes how can i do the same.
plz revert back i u couldnt get the queries.
Thanks
Prem

HI
UPDATE T1
Set T1.flag =1
where T1.columnA=value1 and T2.columnB=value2
where T1 and T2 are tables in the same database,
and the values (value1 and value 2 ) are provided to XI by SAP based on which the flag need to be updated in T1
write a stored procedure specifying the join and call it in XI.
For doing it in SQL statement only reffer to the below link ..sur you will get help .
Multiple records update using JDBC
Regard's
Chetan Ahuja

Resultset from a batch select using prepared statement

Hi,
Is it possible to add results of batch execute of select statements and retrieve the result set ..
I am running select statement in a batch mode setting in value for a column.I add this to a prepared batch.
I would like to get the reults as a batch and spin through the result set like a r.next(). Is this possible ?
I have given the code below
sql = "select ordervalue , orderdate from discreet_orders "+
"where order_no = ? ";
dbObject.prepareStatement(sql);
dbObject.prepareStatement(sql);
for (int i=0; i < orderNoVect.size(); i++) {
dbObject.setString(1,(String)scnV.elementAt(i));
dbObject.addBatchPrepared();
r = dbObject.execPrepared();
dbObject.clearBatchPrepared();
I would like to do a r.getNext() process the values form the resultset.
Is this possible ? If not is there an other way to do it ?
Thanks
Arnold

Olek wrote:
hi
Is there a way do a batch update using prepared statement?
I don't want to insert every row in a single query...
regards,
OlekPossibly the confusion here stems from the existence of two addBatch methods in PreparedStatement.
addBatch(String sql)inherited from Statement adds a new query to the batch of SQL statements for the statement. However you don't want to use this with PreparedStatements Instead you want
addBatch()which adds the current set of parameters to the prepared statements batch of commands.
In this scenario you prepare your query (insert statement) and then call setXXX(x,y) for each parameter and then addBatch for each tuple. Then call executeBatch to execute all the queries based on your batched parameters.
If this didn't answer your question I don't know what your question is exactly. I would add that you probably want to set a "reasonable" size on your batches and break them into smaller batches as is reasonable. Mainly because the implementation of batched PreparedStatements widely varies depending on the database and driver, thus there are certainly scenarios where given enough batched parameters you could have various unpleasant things visited upon your program. Like terminal slowness, running out of memory, etc.

More log writer contention when using JDBC Batch Updates?

So if I'm already seeing log writer contention when I'm commiting inserts one row at a time.
Why would I see even more contention of log writer ie. commit waits in Enterprise Manager when I batch these inserts using JDBC updates.
Today I observed significantly more commit waits when I used JDBC batching vs commit one row at a time.

Please refer
http://www.oracle.com/technology/products/oracle9i/daily/jun07.html

JDBC Batch Updates & PreparedStatement problems (Oracle 8i)

Hi,
we're running into problems when trying to use JDBC Batch Updates with PreparedStatement in Oracle8i.
First of all, Oracle throws a SQLException if one of the statements in the batch fails (e.g. because of a unique constraint violation). As far as I understand, a BatchUpdateException should be thrown?
The next problem is much worse:
Consider this table:
SQL> desc oktest
ID NOT NULL NUMBER(10)
VALUE NOT NULL VARCHAR2(20)
primary key is ID
When inserting in through batch updates with a PreparedStatement, I can pass 'blah' as a value for ID without getting an exception (Oracle silently converts 'blah' to zero). Only when the offending statement is the last statement in the batch, Oracle throws an exception (again, SQLException instead of BatchUpdateException).
Any comments/suggestions are appreciated.
E-mail me if you want to see the code...
Thanks,
Oliver
Oracle version info:
(Enterprise Edition Release 8.1.6.0.0, JServer Release 8.1.6.0.0, Oracle JDBC driver 8.1.6.0.0 and 8.1.7.0.0 (we're using the 'thin' driver)
CLASSPATH=/opt/oracle/product/8.1.7/jdbc/lib/classes12.zip:...
null

Please refer
http://www.oracle.com/technology/products/oracle9i/daily/jun07.html

How are JDBC batch updates implemented by Oracle?

When you're looking to reduce commits you typically think of JDBC batch updates.
I'm just wondering how are these implemented by Oracle and is there ever gains to be had to reducing commits in an Oracle specific way like say using VARRAYs with procedures?

Please refer
http://www.oracle.com/technology/products/oracle9i/daily/jun07.html

How to update two tables in a single call using JDBC Sender adapter

Hello All,
The scenario is, database entries have to be selected from two tables and at the same time those tables have to be udpated with the flag.
We are using JDBC sender adapter and in Select Query, we are fetching the data by joinin the two tables.
Update Statemtent: We can only update one table using this statement.
Is it possible to update two tables using the Update Statement without using Stored Procedures.
Let me know.
Regards,
Sreenivas.

Hi Sreenivas,
> Is it possible to update two tables using the Update Statement without using Stored Procedures.
Yes its possible through join statement
Check this links
Update in JDBC Sender adapter for more than one table
data from 2 tables for jdbc sender adapter
Regards
Ramesh

Error while updating database using jdbc receiver adapter

Hi All,
I am trying to update a single record using jdbc receiver adapter.
This is my the message that is getting created..
<?xml version="1.0" encoding="UTF-8" ?>
- <ns0:Data xmlns:ns0="urn:Test">
- <STATEMENT>
- <TABLENAME ACTION="UPDATE_INSERT">
<TABLE>ORDERS</TABLE>
- <ACCESS>
<OrderID>99999</OrderID>
<CustomerID>VICTE</CustomerID>
<EmployeeID>3</EmployeeID>
<ShipAddress>VICTE</ShipAddress>
</ACCESS>
- <KEY>
<OrderID compareOperation="EQ">99999</OrderID>
<ShipAddress compareOperation="EQ">VICTE</ShipAddress>
</KEY>
</TABLENAME>
</STATEMENT>
</ns0:Data>
But in Adapter Monitoring i am getting the following error..
<i>Error while parsing or executing XML-SQL document: Error processing request in sax parser: Error when executing statement for table/stored proc. 'ORDERS' (structure 'STATEMENT'): java.sql.SQLException: [Microsoft][ODBC SQL Server Driver][SQL Server]Line 1: Incorrect syntax near 'VICTE'.</i>
Regards,
Rahul

Rahul,
> In this case i believe the interface has to be synch.
> So what will the response message type be like..
Not necessary. UPDATE can be asynch as well.
Can you turn the trace on like pointed by Michal and then you can see the Query in the Audit Log of the adapter montioring. Try to execute the same query from your DB Client like TOAD and see what is the Syntax error you are getiing.!
The problem looks like some field has some dataype / column name mismatch.
Regards
Bhavesh

Problem in using JDBC Execute commands(Update & Delete Only) with af:Table

HI Everyone,
I have one issue with Updating and Deleting Row Data using JDBC Execute commands.
Suppose In My Application i have two pages, in Page 1 I have Two Command Buttons(Delete and Save) and One Input TextBox to write the String to be stored in the Database. and Page 2 where the result Table is shown and table is binded with a ViewObject, Now When User Types some String in InTB and click Save then By Programmatically I'm searching, that string is already present in database or not, if it is already exist then Save button converts in Update button and instead of inserting it allows user to Update the String already exist in database.
Everything is working fine but the problem comes when i put those all buttons on the same page where result table is present.After putting all things on the same page and When i click save button to insert new String it is Successfully inserting but when any of other action is performed like updating or Deleting the existing one.. then my application just hanged and then nothing I able to do.
Please Help me to understand this problem and give me the solution for this..
Thanks
Fizzz...

Hi frank,
Thanks to reply me...
I'm refreshing table's iterator on each command button's action to reflect the changed result... and i'm sorry i mentioned two pages in my project.. actually these are two forms in the same page..which conditionally changed its renderer properties.. its working fine when only one form is renderred and the otherside when both are rendered then it is not working.
Hope this change will help you to understand the problem.. if something else you are looking for then please tell me..
Thanks
Fizzz...

How can I avoid using rollback segment for batch updates.

I am currently trying to avoid associating a large amount of space for rollback segment as this gets filled up only during the nightly batch updates. All that space will never be used during the day. Hence want to know if there is any way of avoiding the use of rollback segment at the session level.
Rajesh

No, but what you can do is create a large rollback segment to use with your batch job, at the start of your batch job bring the segment online, then use set transaction to use that rollback segment, when the batch job is finished and committed, you can then bring the rollback segment offline.
If you are really pressed for space, as an alternate plan, you could actually create the large segment before the batch job and drop it after.

Batch status updating using function module BAPI_BATCH_SAVE_REPLICA

Hi,
I want to change batch status after creating the outbound delivery through inbound idoc, i was able to create delivery , but after creation, i should update the batch status using function module BAPI_BATCH_SAVE_REPLICA, but i was unable to execute this function module correctly,
Can any one provide details like what are minimum things that are required to update the batch status using this function module.
In my system batches are defined at plant level.
Please let me know the solution if any one knows this.
With regards.
P.Prasanth.

Look at BAPI_INCOMINGINVOICE_POST
Rob

Batch Updates using JDBC 2.0

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