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  • Book Overview & Buying Learning Informatica PowerCenter 9.x
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Learning Informatica PowerCenter 9.x

Learning Informatica PowerCenter 9.x

By : Rahul Malewar
4 (10)
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Learning Informatica PowerCenter 9.x

Learning Informatica PowerCenter 9.x

4 (10)
By: Rahul Malewar
Buy this Book

Overview of this book

If you wish to deploy Informatica in enterprise environments and make a career in data warehousing, then this book is for you. Whether you are a developer who's new to Informatica or an experienced professional, you will learn all the features of Informatica. Basic knowledge of programming and data warehouse concepts is essential.
Table of Contents (12 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Starting the Development Phase – Using the Designer Screen Basics
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1. Starting the Development Phase – Using the Designer Screen Basics
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Informatica PowerCenter Designer
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The Designer screen's components
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Summary
2
2. Using the Designer Screen – Advanced
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2. Using the Designer Screen – Advanced
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Debug me please – the debugger
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Reuse me please – reusable transformation
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Managing constraints – the target load plan
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I hate hardcoding – parameters and variables
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Comparing objects
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Summary
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3. Implementing SCD – Using Designer Screen Wizards
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3. Implementing SCD – Using Designer Screen Wizards
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SCD1 – I hate history!
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SCD2 (version number) – I need my ancestors!
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SCD2 (flag) – flag the history
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SCD2 (date range) – marking the dates
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SCD3 – store something, if not everything!
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Summary
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4. Finishing the Development – Using the Workflow Manager Screen Basics
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4. Finishing the Development – Using the Workflow Manager Screen Basics
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Using Workflow Manager
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Creating a workflow
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Adding tasks in a workflow
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Working with the session task – basic properties
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Connecting the tasks – links
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Assigning Integration Service to a workflow
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Deleting a workflow
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Trigger – starting a workflow
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Working with connection objects
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Summary
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5. Using the Workflow Manager Screen – Advanced
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5. Using the Workflow Manager Screen – Advanced
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Working with tasks
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Configuring a task
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The session task
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The command task
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The e-mail task
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The assignment task
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The timer task
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The control task
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The decision task
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Event tasks – event wait and event raise
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The link task
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Worklets – groups of tasks
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Schedulers
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File List – the indirect way
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Incremental aggregation
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The parameter file – parameters and variables
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Summary
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6. Monitoring Your Code – Using the Workflow Monitor Screen
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6. Monitoring Your Code – Using the Workflow Monitor Screen
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Using Workflow Monitor
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Connecting to the Workflow Manager screen
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Opening previous workflow runs
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Running or recovering workflows or tasks
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Stopping or aborting the workflow or task
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The status of workflows and tasks
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Viewing the session log and workflow log
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Working with the workflow log
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Working with the session log
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Viewing workflow run properties
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Viewing session run properties
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Common errors
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Summary
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7. The Lifeline of Informatica – Transformations
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7. The Lifeline of Informatica – Transformations
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Creating the transformation
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The Expression transformation
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Ports in transformations
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Using the expression editor
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The Aggregator transformation
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The Sorter transformation
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The Filter transformation
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The Router transformation
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The Rank transformation
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The Sequence Generator transformation
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The Joiner transformation
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Union transformation
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Source Qualifier transformation
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Classification of transformations
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The Lookup transformation
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The Update Strategy transformation
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The Normalizer transformation
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The Stored Procedure transformation
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Transaction Control transformations
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Types of lookup cache
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Tracing levels
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Summary
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8. The Deployment Phase – Using Repository Manager
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8. The Deployment Phase – Using Repository Manager
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Using Repository Manager
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Configuring the client tools
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Take me to next stage – deployment or migration
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Summary
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9. Optimization – Performance Tuning
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9. Optimization – Performance Tuning
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Bottlenecks
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Working on partitioning
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Pushdown optimization
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Summary
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A. Installing Informatica and Using Informatica Administration Console
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A. Installing Informatica and Using Informatica Administration Console
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The Informatica architecture
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Informatica installation – the prerequisites
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Downloading the Informatica PowerCenter software
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Extracting the package – opening the installable
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Starting the installation
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Index
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Index

The control task

The control task is used to control the execution of the workflow. You can stop, abort, or fail the parent workflow or top-level workflow by defining the appropriate condition in the control task.

The control task acts as a green signal or red signal. If you use a control task in a branch in the workflow and if everything is moving smoothly, that is, there are no issues with the process, the control task will not even get triggered. It will act invisible. However, if the process catches up with the issue, the control task will take control, and based on the option you select in the properties, it will stop, abort, or fail the workflow or the top-level workflow.

Creating a control task

To create a control task in Workflow Manager, perform the following steps:

  1. In Workflow Manager, navigate to Task | Create.

  2. From the list of tasks, select the Control task and specify the name of the control task, which is cntl_TASK_NAME. For our reference, we are using the control task name as cntl_ABORT_WORKFLOW...

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