Transcript
Level 1 Course Agenda 1. An Overview of Informatica PowerCenter 9
Overview of PowerCenter covering areas such as the Architecture, Terminology, Tools GUI, Mappings, Transformations, Sessions, Workflows and Workflow Monitor
2. ETL Fundamentals How to create:
Flat file and relational Sources using the Source Analyzer
Flat file and relational Targets using the Target Developer
Mappings using the Mapping Designer
Workflows using the Workflow Designer
Monitor the workflow using the Workflow Monitor
Preview Target Data using the PowerCenter Designer
3. Trouble Shooting Understand PowerCenter Log files Use PC log files to:
View and look up error messages
Correct mapping and workflow errors
4. PowerCenter Transformations, Tasks and Reusability
Define list of PC Designer Transformations and Workflow Tasks
Clarify Active vs. Passive Transformations
Use the Expression Transformation and Editor in a mapping which applies a file list to load multiple flat files into a stage table utilizing expression and filter transformations to format and screen erroneous customer data.
Use Reusable Designer Transformations to apply same formatting logic to Employee records
5. Joins and Link Conditions
Define Joins
Clarify Heterogeneous vs Homogeneous Joins
Use a Joiner Transformation to join relational and flat file sources
Use the Source Qualify to jo in two relational sources
Make use of Link Conditions to execute one session when the first finishes successfully.
6. Using the Debugger
Outline Debugger Interface
Show creation of a break point
Show Evaluate the Expression™ functionality functionality
Re-Execute mapping with different values
7. Sequence Generators, Lookups and Caching
Define the Sequence Generator
Define the Lookup Transformation
What are the different types of Lookups?
Clarify Lookup Caching
Use a Flat File Lookup to add data to a relational target.
Build a Dates Lookup Cache for use in determining start and end dates of target records
Utilize Event Wait, Event Timer and Email Tasks to wait for flat files and email users upon successful/failed load.
8. Update Strategies, Routers and Overrides
Build a mapping that uses Update Strategies and Routers to determine insert/update logic for a target. Overrides will be used for incremental (daily) loading of the target.
9. Sorter, Aggregator, Unconnected Lookups, Mapping Parameter/Variables and Mapplets /Worklets.
Define Sorter Transformation
Detail Aggregator Transformation and Aggregate Functions
Explain Unconnected Lookups and how they are called.
Describe Mapping Parameters/Variables and initialization priority
Outline Mappets and Worklets
Use these Transformations to create a mapping which loads records from warehouse Dimension tables to a Fact table.
10. Workflow Variables and Tasks
Use PC workflow variables to pass i nformation from one point in a workflow to another.
Use an Assignment task to establish the value of a workflow variable within a workflow
Use a decision task to set criteria by which the workflow will decide which execution branch to follow
11. Parameter Files and Command Tasks
Use a Parameter file to make mappings and workflows more flexible by defining values for mapping variables, source files, database connections for sessions and workflow log files.
Command Tasks will be used to run scripts to rename and move files.
12. Dynamic Lookups and Error Logging/Handling
Use Dynamic Lookup, Router and Update Strategy in a mapping do a lookup on the target table and determine if the record should be an insert, update or logged to a file as an error.
Use PowerCenter Best Practices to create a mapping to trap fatal and non-fatal errors.
13. More Lookup Functionality
Create a Multiple Row Return Lookup, use Aggregators and Expressions to count the number of orders a Customer has as well as total the sales for that customer. Add those values to a target.
14. Mapping Design Workshop
Business requirements details will be provided so that the student can design and build their own mapping necessary to load a Promotions Aggregate table. The workshop will provide Velocity Best Practices documents that can be used to determine the correct logic for the mapping.
15. Workflow Design Workshop
Business requirements details will be provided so that the student can design and build their own workflow necessary to load all staging tables in a single workflow. The workshop will provide Velocity Best Practices documents that can be used to determine the correct logic for the workflow
Level 2 Course Agenda 1. PowerCenter Overview
Describe the Components of the PowerCenter 9 Architecture and define key terms.
Describe PowerCenter's optional and built-in high availability features.
2. User-Defined & Advanced Functions
Describe User Defined Function to Create Entity Types.
Describe & implement advanced functions.
3. Pivoting Data
Describe the use of the normalizer and aggregator transformation to normalize and de -normalize date.
4. Stored Procedure & SQL Transformations
Describe the use of the Stored Procedure transformation in a mapping or mapplet.
Describe the uses of the SQL Transform.
5. Transaction Processing
Describe Source based & Target based transaction controls with and without high availability option.
Describe the use of PowerCenter constraint-based loading in databases with referential integrity constraints.
6. Transaction Control Transform
Describe the use of the transaction control transformation for data-driven transaction control.
Describe control when data is committed to disk or the target database.
7. Workflow & Task Recovery
Describe workflow and task recovery with and without the high availability option.
Recover tasks and workflows that stop, abort or terminate.
Explain and use PowerCenter's built-in recovery capabilities.
Explain the user-designed recovery techniques.
Design error handling strategies appropriate for the intended purpose of a workflow.
8. Command Line Utilities
Use pmcmd to start, restart and recover workflows.
Use pmrep for object export, mass validation, object import, back-up and EBF migration of a unit or work.
9. Performance Tuning: Methodology
Describe Performance counters.
Describe busy percentages & how they help in bottleneck isolation.
Describe thread utilization to identify a target bottleneck.
Describe thread utilization to identify a transformation bottleneck.
Describe thread utilization to identify a source bottleneck.
Describe types of target bottlenecks: database, network, disk & PowerCenter.
Describe 3 alternatives to the update-else-insert scenario.
Describe how transaction control impacts performance.
Describe Types of source bottlenecks: database, network, disk & PowerCenter.
Describe tune the line sequential buffer.
Describe external loader effects on targe bottlenecks.
10. Performance Tuning: Mapping Design
Explain types of data type conversion: port-to-port, expression-to-port and explicit.
Identify which transformations increase or decrease the number of rows.
Explain the performance implications of the stored procedure vs. the SQL transformation.
11. Performance Tuning: Caching & Memory Optimization
Describe data caching & RAM memory optimization techniques to improve session performance
Describe DTM buffer pool optimization.
12. Performance Tuning: Partitions
Describe how pipelines & partitions affect performance.
Describe 3 options for merging partitions: sequential, concurrent & file list.
Describe how partitioning affects the DTM buffer pool.
