Handling Locking for transaction in Middle Tier versus Database backend

Hi,
If we implement middle tier with C# as the programming language and backend as SQL Server database, if we now wanted to implement locking where we take the classic case of money withdrawal from a bank account, we could implement this as a single atomic transaction
using locks / monitor in the middle tier or we could do this in a stored procedure and handle it using a begin tran commit tran in SQL Server.
What would be the recommended way? middle tier or sql server database backend?
Thanks

> the two different servers having the same middle tier executing the same code at the same time will be handled by the backend by putting one on hold while the other is being serviced.
Yes. A SQL Server database provides a single coherent state repository for the whole application. And you can use the database transactions to control which business transactions run concurrently, and which do not.
David
David http://blogs.msdn.com/b/dbrowne/

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Any Material locked for transactions due to errors in Material Ledger?

We are implementing Material Ledger for actual costing purpose. After ML implemention, will there be any situation due to errors in costing run, or otherwise, that the material is locked for any further transaction? Is such kind of threat exists under any situation?
Sanjay

Dear Sanjay,
I don't think you will face any problem after succesfully completion of actual cost run.
Situation can be totally opposite...I mean to say while costing run you might face problem of material locking.
There could be problem if transaction in material is happening and same time cost run is going on. or if cost run is going on and the same time somebody is trying any transaction.
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Is it possible to pass through the Identity of the Real User
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Trevor,
What type of OS is the app server running on? How is the user
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servertype).
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Trevor (guest) wrote:
: Is it possible to pass through the Identity of the Real User
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: connection pooling to connect to the database.
: Note. The Application server is running EJBs that connect to
the
: database using JDBC, with any driver type (eg OCI, thin).
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Lock for transaction code.

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hai
I used below FM with parameter 'ZTRAN$' for TABNAME as u said.my transaction name is ZTRANS.
Now tell me onething, If same user opens the same transaction again(\n) , transaction opens for simultaneous access.
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CALL FUNCTION 'ENQUEUE_E_TABLE'
EXPORTING
MODE_RSTABLE = 'E'
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VARKEY =
X_TABNAME = ' '
X_VARKEY = ' '
_SCOPE = '2'
_WAIT = ' '
_COLLECT = ' '
EXCEPTIONS
FOREIGN_LOCK = 1
SYSTEM_FAILURE = 2
OTHERS = 3
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
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hi,
i need to install BPEL process manager, so i download the following file from otn
1.soa_windows_x86_101310_disk1
2.soa_windows_x86_bpel_101310
here i read the document named b28980.pdf from bpel\doc\pc.1012 to install BPEL PM
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default destination is : D:\product\10.1.3.1\OraBPEL_1 selected next on the screen
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2.BPEL process manager for Oracle AS Middle tier (107MB)
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pop up window opens with title dependencies
error:
BPEL Process manager for oracle AS Middle tier will run on top of a supported Oracle Application Server 10.1.3.1.0 J2EE server and Web Server Or J2EE server instance. this location does not contain this instance. Please select new Oracle home that contains a supported instance.
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Thanks in Advance
Aswath Thaniga

If you choose the developer version you will be fine.
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cheers
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The client, middle tier, and database are all Windows based operating systems. The applications is a .Net application and we turned on Impersonation which we read will help pass the client OS user to middle tier so that the application runs as them. And that appears to be working correctly. Again we can get this working when we host the windows service locally, it just wont work when it is hosted on the middle tier. Any ideas how to get this to work?
Oracle version 11.2.0.2 and 11.2.0.3
Windows Server 2008 R2

Hi, jeff81.
I had same problem with Win2003 server. Try this:
Start -> Settings -> Control Panel -> Administrative Tools -> Services
then select "PROPERTIES/LOGON" for necessary service.
Change "Local System account" to your user account.
Make sure that user account have necessary grants.
ps. sorry my poor english :(

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Every month, we do the closing of accounts. For this, we have to close all GRN related transactions, so that the accounting entries are not passed. We use trxn SM01, to lock, MIRO, MIGO, & ML81N, so that user does not book any entries for that month.
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Hello,
There is fixed solution on for what you are asking.But its little bit tricky.
If you are aware of Validation rule .you can go and customise your requirement or take ABAPERS help.
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how to handle bdc for more than one transaction?

Hi srk,
I am providing you with some references below. Hope this prove to be helpful to you.
Method 1:
Use one BDC_OPEN_GROUP
Multiple BDC_INSERT
One BDC_CLOSE_GROUP.
Call function BDC_OPENGROUP.
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Build BDC data and call lBDC_INSERT for transaction 2
Build BDC data and call lBDC_INSERT for transaction 3
paas the tcodes to bdc_insert.
call function BDC_CLOSE_GROUP.
Also check this out:
Here we need to record 2 transactions (shdb).
Once completion of the recording. Populate the data into input internal table .
Loop the internal table and process the 2 transactions
like
1. BDC_OPEN_GROUP
2. LOOP AT ITAB
a. Populate first transaction recording data
and pass transaction to the BDC_INSERT_GROUP.
BDC_INSERT_GROUP.
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BDC_INSERT_GROUP.
ENDLOOP.
3. BDC_CLOSE_GROUP
the above info can be found at : How to use 2 transactions in BDC?
Also check this out:
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Then do this:
bdc_open_group.
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bdc_insert.
refresh bdcdata.
after this we have to fill the bdcdata structure for one transaction.here 'xk01'.
bdc_insert .
refresh bdcdata.
after this we have to fill the bdcdata structure for one transaction.here 'va01'.
bdc_insert.
bdc_close_group.
Hope these are useful to you.
Please reward if any of the above are useful.
Regards,
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How to Lock a Transaction for Editing AND VERY minor tab cont. help

Just two things I need to ask about
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I am currently using the fcode ENQUEUE_E_TABLE. The function works as once the transaction in opened, another cannot access it.
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 2. VERY minor tab cont. help 
I noticed in a table control is being used in a transction you can resize a colunm. How do you disable this ?
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Hi chad,
This link will help u know abty different types of locks that are available:
http://help.sap.com/saphelp_erp2005/helpdata/en/7b/f9813712f7434be10000009b38f8cf/frameset.htm
For resizing all u can go to the table settings and u can do it.
Hope tis helps u,
Regards,
Nagarajan.

Delays in acquiring lock for com.sun.xml.ws.handler.ServerSOAPHandler

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Does anyone encounter similar issue?
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Using WLS 10.0 mp2 and jrockit, there looks to be intermittent delays in the webservice, of about 3.5 seconds delay, when WLS is trying to acquire locks for com.sun.xml.ws.handler.ServerSOAPHandler in com.sun.xml.ws.handler.HandlerPipe.process(). This is showing up in JRA recording, and is happening about 15-20% of the calls.
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How to install/upgrade Ultrasearch for AS Middle Tier 10.1.2.0.2? DB 9208.

Hi,
I am trying to understand the Ultrasearch from the point of view of my 10.1.2.0.2 middle tier. Here is my environment:
Our Metadata Repository and Portal Repository (Customer) databases are version 9.2.0.8. Recently patched to 9.2.0.8 from 9.2.0.7.
Our Infrastructure & Middle Tiers have been recently upgraded to version 10.1.2.0.2 from version 9.0.4.1.
Both the repository databases and the Infra and Mid tiers have their own Oracle Homes.
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============================================================================
2009/07/16 12:27:20.478 PDT NOTIFICATION:1 Framework: Starting to examine UltraSearch.
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2009/07/16 12:52:41.587 PDT NOTIFICATION:1 Framework: Finished examining UltraSearch with status: Success.
2009/07/19 19:08:28.616 PDT NOTIFICATION:1 Framework: Starting to examine UltraSearch.
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============================================================================
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============================================================================
Calling upgrade plugin for ULTRASEARCH
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============================================================================
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As per the APP_REGISTRY in our MR database, the Ultrasearch component is version 9.2.0.8.0 and is INVALID.
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I think Ultrasearch is installed for our AS environment. I don't know if it is valid.
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CV

Figured out that Ultrasearch was installed as a part of the Middle Tier install and was upgraded successfully during the Middle Tier upgrade.
Thanks.
CV

Dose middle tier installation asks for the instance name?

Dose middle tier installation asks for the instance name?
If yes, should it be same as the infrastructure instance name?
Regards,
DN

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Hussein,
Thanks for your quick reply. I'm still a little confused. When installing r12 rup6 and upgrading to 11g there was lots of patching. Whenever the specific doumentation stated that linux32 was required, it was used. I only found this when actually running the Xwindows universal installer, and then even when installing 11g software. However, all other patching (lots) of the application tier using opatch was done without using linux32. We did download and install the latest 64-bit version of opatch. None of the patches produced any errors. Is this the correct thing to be doing? If not, what should be done to correct the problem? How might any problem manefest itself.
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BPEL logs for Middle Tier AS installation

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gurus,
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i had following groups before bringing in sun box#3 -
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Owner.Table Groups exist ?
(Y / N)
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Hi,
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Jim

Handling Locking for transaction in Middle Tier versus Database backend

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