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Informatica Introduction

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Introduction

Informatica is an ETL (Extract, Transform, Load) tool which will be used to extract the data from homogeneous or heterogeneous sources, Transform the data according to your business logic, and load the transformed data into file and relational targets.

Informatica Components:

Informatica domain:

The Informatica domain is the primary unit for management and administration within
PowerCenter. The Service Manager runs on an Informatica domain. The Service Manager supports the domain and the application services. Application services represent server-based functionality. The domain supports PowerCenter and Informatica application services. PowerCenter application services include the PowerCenter Repository Service, PowerCenter Integration Service, Web Services Hub, and SAP BW Service. Informatica  Services include the Data Integration Service, Model Repository Service, and the Analyst Service.

PowerCenter repository: 

The PowerCenter repository resides in a relational database. The repository database tables contain the instructions required to extract, transform, and load data.Power Center applications access the
repository through the Repository Service.

Informatica Administrator:

Informatica Administrator is a web application that you use to administer the Informatica domain and PowerCenter security.

PowerCenter Client: 

The PowerCenter Client is an application used to define sources and targets, build mappings and mapplets with the transformation logic, and create workflows to run the mapping logic. The PowerCenter Client connects to the repository through the PowerCenter Repository Service to modify repository metadata. It connects to the Integration Service to start workflows.

PowerCenter Repository Service:

The PowerCenter Repository Service accepts requests from the PowerCenter Client to create and modify repository metadata and accepts requests from the Integration Service for metadata when a workflow runs.

PowerCenter Integration Service:

The PowerCenter Integration Service extracts data from sources and loads data to targets.

Sources:

PowerCenter accesses the following sources:
  • File: Fixed and delimited flat file, COBOL file, XML file
  • Relational: Oracle, Sybase ASE, Informix, IBM DB2, Microsoft SQL Server, and Teradata.
  • Application: You can purchase additional PowerExchange products to access business sources such as Hyperion Essbase, WebSphere MQ, IBM DB2 OLAP Server, JMS, Microsoft Message Queue, PeopleSoft, SAP NetWeaver, SAS, Siebel, TIBCO, and webMethods.
  • Mainframe: You can purchase PowerExchange to access source data from mainframe databases such as Adabas, Datacom, IBM DB2 OS/390, IBM DB2 OS/400, IDMS, IDMS-X, IMS, and VSAM.
  • Other: Microsoft Excel, Microsoft Access, and external web services.

Targets:

  • File: Fixed and delimited flat file and XML.
  • Relational: Oracle, Sybase ASE, Sybase IQ, Informix, IBM DB2, Microsoft SQL Server, and Teradata.
  • Application: You can purchase additional PowerExchange products to load data into business sources such as Hyperion Essbase, WebSphere MQ, IBM DB2 OLAP Server, JMS, Microsoft Message Queue, PeopleSoft EPM, SAP NetWeaver, SAP NetWeaver BI, SAS, Siebel, TIBCO, and webMethods.
  • Mainframe: You can purchase PowerExchange to load data into mainframe databases such as IBM DB2 for z/ OS, IMS, and VSAM.
  • Other: Microsoft Access and external web services.
You can load data into targets using ODBC or native drivers, FTP, or external loaders.

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