Data migration from SAP to Oracle

Can any one suggest best possible method for migrating master and transactional data from SAP to Oracle.
Please suggest methods to get data in text file from SAP.

Best approach would be to use Electronic Data Interchange (EDI) outbound from SAP inbound to Oracle. There are two widely used standards in EDI messages - ANSI X12 and EDIFACT; I'm pretty sure the Oracle system will be able to accept one of the two standards or both.
In my last message, when I asked if Oracle is able to receive and process IDocs, I actually meant if Oracle will be able to accept and process EDI messages. IDocs are containers of the EDI message i.e. a data container - their formats are SAP proprietary formats which will not make sense to your target system (Oracle). EDI has been around for many years and is the standard way of electronically exchanging business documents between computer systems of business partners, using a standard format over a communication network.
In regards to your question - I'm not really sure if you want to send master/transactional data real-time from SAP to Oracle or want to transfer the historical data i.e. download from SAP tables (thru SE16 - this will download the field labels as well) into text files and then upload it to Oracle by using a custom program which reads/maps the files then posts the transactional data/updates master data tables in Oracle as required by that system. So let me know as much details as possible.
It would be nice to show appreciation by rewarding points.
Cheers,
Sougata.

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Hay Soorya
go through this link
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Please assign points as way to say thanks

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>>
endobj
5 0 obj
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>>
stream
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>>
endobj
5 0 obj
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>>
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Hi Saras,
I am giving you an example senario and a how to do all the steps and why it needed. if you need more information just mail me i'll give you the concerned PDF.
Scenario
SAP Business Connector enables data exchange between an SAP system and
external systems using HTTP and e-mail. SAP Exchange Infrastructure (SAP XI)
replaces SAP Business Connector (SAP BC).
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An SAP system sends an IDoc to SAP BC or to SAP XI. The IDoc is converted to
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An external business partner sends an XML document by using HTTP to SAP BC or
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system in the internal system landscape.
Scenario 2 (IDoc Mail, Mail IDoc)
An SAP system sends an IDoc to SAP BC or to SAP XI. The IDoc is converted to
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An external business partner sends an e-mail to SAP BC or to SAP XI. The
document is converted to an IDoc and sent to a connected SAP system in the
internal system landscape.
Flow Services
Flow services are services that are written in the proprietary graphical-based flow
language of SAP BC.
Java Services
Java services are services that are written in the Java language.
There are several platforms that support Java, including SAP XI. However, the data
model used in the Java services in SAP BC is proprietary.
Stylesheet Transformations
Stylesheet transformations are often used for mapping purposes. They take an XML
document as input, convert it according to rules defined in the stylesheet, which is
also an XML document, and produce an XML document as output.
The XML Stylesheet Transformation Language (XSLT) was defined by W3C (World
Wide Web Consortium), the consortium that defines most of the common standards in modern internet communication, such as HTML and SOAP.
SAP NetWeaver is the open integration and application platform from SAP. With
NetWeaver 04, there is a significant overlap between the functions of SAP
NetWeaver and SAP BC. Many functions provided by SAP BC are offered by SAP XI
as part of SAP NetWeaver, for example, conversion of an IDoc to an XML message,
mapping, routing, and adapters to connect to a large number of third-party back-end
systems. SAP BC is therefore no longer needed. New or updated SAP solutions are
based on SAP NetWeaver. Customers looking for a strategic integration solution for
the complete application landscape should therefore now favor SAP NetWeaver.
The last version of SAP BC was SAP BC 4.7, which was released in June 2003. SAP
BC has not been developed further since this release. SAP BC is not released for
any further platforms (such as Windows 2003) and does not support any further JDK
versions, including the current version (Version 1.4).
For information about the supported SAP BC versions, JDKs, and operating systems,
see SAP Note 309834. For information about the support and maintenance strategy
for SAP BC, see SAP Note 571530. Customers who still use SAP BC need to be
aware of the following:
A solution based on SAP BC cannot be a strategic, long-term solution.
A solution based on SAP BC is based on technology that was implemented in
2003 and that is no longer further developed.
SAP BC is supported on limited platforms and for limited JDKs only. Vendor
support for some of these platforms and JDK versions will soon be
discontinued.
SAP BC and SAP NetWeaver are based on different technologies: SAP BC is based
on webMethods proprietary Integration Server, whereas SAP NetWeaver is based
on open standards, such as BPEL4WS (business process execution language for
web services). Therefore, only parts of an SAP BC implementation, such as XSLT
mappings, can be migrated to a solution based on SAP NetWeaver. Any custom
programming based on SAP BC, such as SAP BC flow language, is unlikely to be
reusable in the SAP NetWeaver context.
Purpose of this Migration Guide
The purpose of this migration guide is to provide scenario-based descriptions of the
migration from a companys system landscape that uses SAP BC to exchange
documents with business partners, to a system landscape that uses SAP XI instead.
This migration guide outlines, for certain scenarios, the individual steps a company
has to take to replace an existing SAP BC implementation with SAP XI.
The basic steps in the back-end systems are:
Defining the logical systems
Maintaining the ALE distribution model
Maintaining partner profiles and EDI ports
Maintaining RFC destinations
The basic steps in the SAP XI system are:
Maintaining the System Landscape Directory
Configuring the IDoc adapter
Maintaining the receiver determinations, interface determinations, and
interface agreements
Maintaining the communication channels
The type of scenario to migrate typically has an impact on the communication channels only.
Scenario 1 IDoc/HTTP
IDoc HTTP Using SAP BC
Within the system landscape of a company, an SAP system sends an IDoc
asynchronously to SAP BC. SAP BC converts the IDoc into a standard IDoc XML
document. The fields of the IDoc are not modified, that is, the conversion does not
involve any mapping of source fields to target fields. After conversion, SAP BC uses
HTTP to send the XML document synchronously to an external URL of a business
partner.
System Landscape
An SAP system and SAP BC are installed within the same system landscape
of a company.
The following information is defined in the SAP system to allow data
exchange between the SAP system and SAP BC:
o An RFC destination and a logical system for SAP BC
o The distribution model is maintained, if necessary
The following information is defined in SAP BC:
o An SAP server with an alias is defined. For this SAP server, the
information that the SAP BC requires to connect to the SAP system is
specified.
o A listener is configured to listen to requests from the SAP system.
o A routing rule with the transport type XML is configured for the
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determines how a message is to be routed and where it is to be routed
to. The scenario described does not use an ACL, (Access Control List
to restrict execution permissions for this routing rule) or pre-processing
or post-processing SAP BC services.
4.2 IDoc HTTP Using SAP XI
Check the prerequisites described above under Prerequisites for Standard
Scenarios.
The IDoc adapter is used to receive an IDoc from an SAP back-end system and
convert it to XML.
The adapter used to post this XML to an external destination is the plain HTTP
adapter.
To set up the communication channel, perform the following steps:
1. Locate the routing rule in SAP
Business Connector.
In the Administration View, choose
Adapters Routing to navigate to
Routing Rules.
2. Select the details of the relevant routing rule.
To display the details, choose the green triangle (Edit).
Transport is typically set to XML and a URL is specified. You can use this
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exist. This is the same as when Transport is set to XML and has the
URL http://<serverhost>:<port>/invoke/<folder>/<service>.
You can find <serverhost> and<port> in the definition of the
remote server under Settings >Remote Server in the Administration
View.
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Use the following settings:
Adapter Type: HTTP Receiver
Transport Protocol: HTTP 1.0
Message Protocol: XI Payload in HTTP Body
Adapter Engine: Integration Server
Addressing Type: URL Address
Target Host, Service Number,and Path need to be set in accordance with the SAP BC routing rule. HTTP Proxy Host and HTTP Proxy
Port can be set if required.All other parameters have no corresponding values in SAP BC and should be set to their default values.
regards
Aashish Sinha
P : Reward points if helpful

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Hi all,
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Thanks,
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Please reward points
Sunil

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