DataStage XML and Web services packs overview
Ascential DataStage, acquired by IBM in 2005, is now known as IBM WebSphere DataStage. It is a convenient, GUI-based extract, transform, and load (ETL) tool that you can use to integrate organizational data of different structures and formats and effectively support customer relationship management (CRM) analysis, decision support systems (DSS), and e-business.
DataStage is based on a client-server infrastructure and includes designer, manager, director, and administrator components, providing robust functionality. DataStage can dramatically simplify tasks from development to maintenance.
The XML pack and Web Services pack of DataStage are the focal points of this article. With these two packs, XML and Web services can be easily integrated into DataStage solutions.
The advantages of utilizing these two packs with DataStage are:
Reduced development time
Fast user response
User-friendly development, management, and maintenance GUI environment
DataStage XML (XML pack of DataStage) is composed of XML digesting, XML publishing, and transforming functions. The XML section of this article introduces one of the major conversions provided by the XML pack: transformation between XML documents and tabular data.
The Web Services pack enables DataStage to call remote services and treat those services as simple data sources, data targets, or interactive data interface. The Web Services Transformer, which provides the interactive data interface, is discussed in the Web services part of this article.
This article include four samples of developing data solutions with DataStage (Version. 7.5.1A, with XML and Web services packs installed), along with analysis and notes for those samples. They are based on the following typical scenarios:
Publishing XML document from tabular data
Parsing XML document into tabular data
Accessing a Web service with input and output data
Prerequisites
WebSphere DataStage V7.5.1A with DB2® pack, XML pack, and Web services pack should be installed.
IBM® DB2 for Linux®, UNIX®, and Windows® V8.2 (or higher) should be installed.
The audience is assumed to have some practical experience of XML, Web services, and DB2, as well as basic knowledge of DataStage.
IBM InfoSphere DataStage
IBM InfoSphere DataStage is an ETL tool and part of the IBM Information Platforms Solutions suite and IBM InfoSphere. It uses a graphical notation to construct data integration solutions and is available in various versions such as the Server Edition and the Enterprise Edition.
A data extraction and transformation program for Windows NT/2000 servers that is used to pull data from legacy databases, flat files and relational databases and convert them into data marts and data warehouses. Formerly a product from Ascential Software Corporation, which IBM acquired in 2005, DataStage became a core component of the IBM WebSphere Data Integration suite.
DataStage originated at VMark[1], a spin off from Prime Computers that developed two notable products: UniVerse database and the DataStage ETL tool.
The first VMark ETL prototype was built by Lee Scheffler in the first half of 1996[1].
Peter Weyman was VMark VP of Strategy and identified the ETL market as an opportunity. He appointed Lee Scheffler as the architect and conceived the product brand name "Stage" to signify modularity and component-orientation[2].
This tag was used to name DataStage and subsequently used in related products QualityStage, ProfileStage, MetaStage and AuditStage.
Lee Scheffler presented the DataStage product overview to the board of VMark in June 1996 and it was approved for development.
The product was in alpha testing in October, beta testing in November and was generally available in January 1997.
VMark acquired UniData in October 1997 and renamed itself to Ardent Software[3]. In 1999 Ardent Software was acquired by Informix[4] the database software vendor.
In April 2001 IBM acquired Informix and took just the database business leaving the data integration tools to be spun off as an independent software company called Ascential Software[5].
In November 2001, Ascential Software Corp. of Westboro, Mass. acquired privately held Torrent Systems Inc. of Cambridge, Mass. for $46 million in cash.
Ascential announced a commitment to integrate Orchestrate's parallel processing capabilities directly into the DataStageXE platform. [6].
In March 2005 IBM acquired Ascential Software[7] and made DataStage part of the WebSphere family as WebSphere DataStage.
In 2006 the product was released as part of the IBM Information Server under the Information Management family but was still known as WebSphere DataStage.
In 2008 the suite was renamed to InfoSphere Information Server and the product was renamed to InfoSphere DataStage[8].
•Enterprise Edition: a name give to the version of DataStage that had a parallel processing architecture and parallel ETL jobs.
•Server Edition: the name of the original version of DataStage representing Server Jobs. Early DataStage versions only contained Server Jobs. DataStage 5 added Sequence Jobs and DataStage 6 added Parallel Jobs via Enterprise Edition.
•MVS Edition: mainframe jobs, developed on a Windows or Unix/Linux platform and transferred to the mainframe as compiled mainframe jobs.
•DataStage for PeopleSoft: a server edition with prebuilt PeopleSoft EPM jobs under an OEM arragement with PeopleSoft and Oracle Corporation.
•DataStage TX: for processing complex transactions and messages, formerly known as Mercator.
•DataStage SOA: Real Time Integration pack can turn server or parallel jobs into SOA services.
Saturday, April 3, 2010
WebSphere DataStage XML
Labels: WebSphere DataStage XML-1
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