How to handle an asynchronized scenario?

Hi, there:
I had an asynchronized scenario in my web application. After client side collecting information and click "submit", my servlet in server side is supposed to wrap those information in a transaction and send it to 3rd party engine, however, the response of that transaction from the 3rd party engine is asynchronized (may take several minutes).
Question:
At client side, after user click "submit", what should I do?
a. tell user transaction is submitted successfully, and ask him to check response later;
b. display some information like "please wait, your transaction is processing ..........", and my servlet keeps polling response, and send html response back after get response from 3rd party?
c. Or, servlet send response back immediately, however, somehow to get client side keeps sending request to servlet to check the status of transaction?
Highly appreciated if any suggestion or comments.
Thanks a lot in advance
David

You are waiting
for card authorization back. How do they handle those
scenario? like during waiting for response, the
client navigate to other links, or even shut down the
browser.You can't do anything about clients who don't wait for a response. You can't even find out that they didn't wait. If your response time is going to be fairly reasonable -- a few seconds, maybe up to 30 seconds -- then displaying scary warnings may persuade the client to wait. If your response time is going to be a minute or more, then you are just going to annoy people. One option in that case is to get the client's e-mail address. Then your servlet would just send a trivial response ("Thank you for your order, you will be notified when it is processed") and put the job in a queue to be handled off-line. Handling of the job would involve sending a confirmation e-mail.
Or you could provide another page where the user can keep track of the progress of his request, which your off-line system is updating whenever it does something with it.
Also, for those time consuming tasks in
serverside, if hundreds of requests come at almost
the same time, will it cause some problem in server
side? like performance, resource issue?Sure it could. There are people who do nothing but tune Web servers for a living.

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thanks,
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I think you would be better of with an example, but with this explanation in mind looking at the scenarios in the How to again might clarify things...
Regards,
Christian
/ Christian
Message was edited by: Christian

How to handle inventory management scenario

Hi All,
In How to handle inventory management scenario whitepaper, I fail to understand the basic difference between 'Inventory Management with non-cumulative Key Figures' and 'Inventory Management with Snapshots'. Can anyone please explain me the basic difference.
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PB

Hi Loic
Can u please see if all the steps listed below are OK.
While setting up the IM Scenario
I have jotted down the steps with valuable inputs from you and paper 'How to Hanlde IM scenarios'
Please find the steps below. Kindly review them and let me know in case I have got anything wrong or missed out on anything.
1. Transfer Business Content Datasources 2LIS_03_BX , 2LIS_03_BF, AND 2LIS_03_UM in RSA5.
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Hello friends,
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hi
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<b>"How to...Handle Inventory Management Scenarios in BW"</b>
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Bye,
Roberto

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930254 wrote:
hi ,
I am using Release 10.2.0.1.0 of Oracle. I am having a scenario in which i am getting poor execution plans due to stale stats , and how should i tackle the scenario. below is the part of my main query which deviates the execution path due to wrong cardinality estimation.
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      below is my query:
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      where c1 BETWEEN 1346300090668 AND 1346325539486    ;
Plan hash value: 3167980259
| Id | Operation                   | Name                    | Starts | E-Rows | A-Rows |   A-Time   | Buffers | Reads |
|   1 | TABLE ACCESS BY INDEX ROWID| tab1                    |      1 |   1    |    167K|00:01:13.72 |     158K| 12390 |
|* 2 |   INDEX RANGE SCAN          | IDX_N1                  |      1 |   1    |    167K|00:00:13.27 |   13880 |   1736 |
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Oracle 10 and later has a default job to do that. Runs at 2200 daily.
If you need an 'on demand' refresh, that's easy enough to set up.

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How to Handle Inventory Management Scenarios in BW (NW2004) BW7

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Hi,
Before posting please search on Google.
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Hi,
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