Training | CIF CONSULT | Redouane BELBAHRI

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Informatica PowerExchange 9.X

• Training CIF CONSULT Redouane BELBAHRI

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Agenda

• Objectives
• What is PowerExchange
• How Does the Team typically use PWX
• Power Exchange Batch Architecture
• Real Examples

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Agenda
Objectives
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Agenda

• This course explains what PowerExchange is and
  how it is used. We will learn the Architetue
  (batch) of PowerEXchange, and the key components
• Undestand the PowerExchange Architecture
• Describe How PWX Datamaps are used and where they
  are stored
• Create a basic Datamap in the PWX Navigator GUI

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Agenda
What is PowerExchange
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Agenda

• Power Exchange (PWX) is a tool we use to parse
  complex files and pull them into Designer.
• Power Exchange (PWX) is comprised of 3 main
  components
• Change Data Capture Allows you to monitor and
  retrieve changes that have occurred to data in
  which you have expressed an interest.
• Data Maps Used to access data sources like IMS
  databases, VSAM files and flat files.
• Personal Metadata - Allows you to browse meta
  data from remote databases.

Remark Change Data Capture (CDC) and Personal
Metadata are out of scope in this presentation
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PowerExchange Batch Platforms
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PowerExchange Change Capture (CDC)
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Agenda
How Does the Team typically use PWX
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How Does the Team typically use PWX

• Complex Flat File Parsing
• Complex copybooks with multiple record types
• Creating multiple records out of occurs depending
  on or blowing them out to the full range of the
  occurs
• Verifying that the layout is correct with a row
  test
• Data from the row test can be copied into a text
  file and then imported into Excel as a comma
  delimited file.
• Making sure that the input data can be seen
  correctly by PWX
• Interaction with Power Center
• Pulling Sources and Targets set up with PWX into
  Informatica Designer

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When to use PWX
When to Use PowerCenter
When to Use PowerExchange

• PowerCenter supports only fixed width
  files,Informatica VSAM reader does not support
  variable length file.
• This file is read using a PowerCenter Normalizer
  transformation.
• PowerCenter does not support the Occurs Depending
  On clause.
• PowerCenter supports comp, comp-3, comp-6 and
  comp-x fields.

• However, PowerExchange has a capability of
  reading the variable length VSAM file.
• In PowerExchange create a data map for the VSAM
  file by importing the COBOL copybook.

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Agenda
Power Exchange Batch Architecture
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• How Does PWX work?

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Where PWX is installed ?
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Informatica PowerExchangeDesign Time - Batch
Architecture
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PowerExchange CDC ArchitectureFor Oracle (option
available at AXA)

• PowerExchange Change Data Capture (CDC) works in
  conjunction with PowerCenter to capture changes
  to data in source tables and replicate those
  changes to target tables and files.

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Traditional Methods for Moving Data

• Multiple manual steps for each source database!

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PowerExchange Approach

• No Programming, No Intermediate Files
• Data extracted with SQL, converted and filtered
• Loaded to target in memory
• Restart and Recovery integration with PowerCenter

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What is a Datamap ?

• A Datamap defines metadata
• For non-relational databases, need to define
  metadata
• Contains all information regarding the underlying
  dataset
• Created from existing information
• VSAM copybooks
• IMS DBDs, then overlay segment copybooks
• ADABAS FDT
• IDMS schemas
• Flattens out hierarchical or multi-record type
  data
• Stored on the same platform as the data
• Not needed for relational sources
• Provides the information to convert an SQL
  statement to actual data base requests

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Where is the Datamap stored?

• Source version of datamap is stored on windows
  machine where created
• Datamaps folder, (dmp file on windows)
• Run time version is stored with the PWX software
  on the source data machine
• Datamaps folder, (dmp file type on windows)
• Install.lib.DATAMAPS sequential file on MVS
• Stdatamaps lib on AS400
• Run time version can be imported into any windows
  session of PWX Navigator to pull in most recent
  copy
• Refer to the Navigator User Guide for more
  information

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Different types of data and where they are stored

• The 'compiled' version of the data map, in this
  case test.EBCDIC.dmx' is stored in the
  'datamaps' folder directly under the product
  install directory on the system where it will be
  used by the product to access the data. It is
  sent when you see a message in Navigator that
  says that information must be sent to the 'remote
  system' in order to retrieve data.
• There is also a lock file for the customer data
  map. It is 'customer.lck' and is also stored in
  the Shared folder. It is used to serialize access
  to the data map source.

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Configuration File

• Configuration File
• Sets many defaults parameters for PowerExchange
• Provide security settings
• Communication Settings
• Config File Communication Params

• LISTENER
• Node Name
• TCPIP (standard parm)
• Port Number
• NODE
• Node name
• TCPIP (standard parm
• Host Name or IP address
• Port Number

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What is a Listener?

• A PowerExchange task that accept requests for
  data
• Uses an IP address and Port Number
• Can listen on multiple Port numbers at the same
  time
• Can have multiple listeners running (on unique IP
  and Ports)
• Only needed on remote platforms for access to
  batch data
• Also used for connecting to remote PowerExchange
  Nodes for creating datamaps and Capture
  Registrations

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Listener Phone lineEasy way to remember

• The Listener is the equivalent of the phone
  number that defines a number, whitch is the IP
  address and Port, once turned on can be called
  from other places.

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Node Address Book Numbers Easy way to remember

• Node statement gives all the available numbers we
  can call from this location

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Listener and Node Example
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Agenda
Real Examples
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Examples

• Fixed Length File
• Variable Length File
• Variable Length File with multiple record types

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Connection to PWX Navigator
Demonstration Of PWX
From the Taskbar
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Connection to PowerExchange client tool
OR
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Note No need to use a Login and password to
access
Desktop icon
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Acces Homepage
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Example 1 Fixed length VSAM file
Demonstration Of PWX

• Create Data Map that convert an EBCDIC file to
  ASCII file format
• Add a Data Map
• Fill in the Schema name and the Data Map Name
• Insert the Input File name and its location on
  the server, Select the fixed option, change the
  default line to EBCDIC IBM-1047
• Enter the name of the source file copybook

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Prepare the Cobol file structure
Demonstration Of PWX
Remove this section

1. The Cobol file structure you are being to use
   should not contains the header informations, if
   not later you will have this error

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Add a data map
Demonstration Of PWX

• Right click on the data map folder to add a data
  map.

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Fill in the Schema Name and the Data Map Name
Demonstration Of PWX

1. Fill in the Schema Name and the Data Map Name
2. Access Method SEQ (for Flat file)
3. Click next

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Data Map PropertiesLocation and type of copybook
that you want to import.
Demonstration Of PWX

• Insert the file name (data file) that the map
  will need to read in Informatica
• (this file will be on the server).
• Select fixed or variable depending on the type of
  file.
• In the Size box, enter the record length (if not
  known give 1 as size, will correct later).
• The screen print above is for a fixed file only.
• Click Finish

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Import Copybook Source Details
Demonstration Of PWX
Column Range Enter the start and end column
range for the copybook
Source Local. The copybook is located on the
PowerExchange Navigator system. Remote. The
copybook is located on a remote system.

1. Enter information about the location and type of
   metadata that you want to import.
2. Click Next

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Import Copybook Local Cobol Details
Demonstration Of PWX

• Tell PowerExchange where you have your copybook
  located on your PC
• Click next.

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Import Copybook Configuration Details
Demonstration Of PWX

1. Click Finish

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Import Copybook Information
Demonstration Of PWX

1. Click OK

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Record Definition
Demonstration Of PWX

1. Click OK

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Add a data map Physical definition mapped to the
relational definition
Demonstration Of PWX
Table
Record

1. Click OK

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Add a data map (EBCDIC)
Demonstration Of PWX

1. Click Close
2. Make a note of the file actual length
3. Click yes

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Add a data map (EBCDIC)
Demonstration Of PWX

1. Right click on Test.EBCDIC in the resource
   explorer (Data Map) and select properties.
2. Select the SEQ Access Method Tab and change the
   length to 350.

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Check the Created Data mapEdit Resource
Configuration
Demonstration Of PWX

• A PowerExchange Navigator resource configuration
  defines the location of data maps, personal
  metadata profiles,and any locally stored capture
  registrations and extraction maps.
• Note You cannot edit the resource configuration
  if a PowerExchange resource is open.

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Add a data map (EBCDIC)Example with Occurs
Demonstration Of PWX
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Send data map to Node
Demonstration Of PWX
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See dbmover.cfg on the local machine
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Perform a Row Test (1/3)
Demonstration Of PWX
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1. Select the Table and Click Row Test
2. In the Database Row Test dialog box select NRDB
   (Nonrelational data source )
3. Enter the name of the file in the Override File
   Name box (file should be in the server)
4. Click Go

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Perform a Row Test (2/3)
Demonstration Of PWX
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Perform a Row TestExample with Occurs (3/3)
Demonstration Of PWX
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Created datamap on the integration Server
Demonstration Of PWX
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Import the created dmx as datamap
Demonstration Of PWX
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Import the source into PowerCenter Designer
Demonstration Of PWX

1. Go into Informatica designer and open the Source
   Analyzer.
2. Select Sources and then Select Import from
   PowerExchange.

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Import the source into PowerCenter Designer
Demonstration Of PWX
List of nodes on the dbmover.cfg file in the
local machine
It doesnt really matter if the multi record box
is checked unless you truly have multi-record
datamaps.

1. Select the Location nodeDEV
2. Select Source Type SEQ
3. Select Multi-Record Datamaps.
4. Click connect.

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Import the source into PowerCenter Designer
Demonstration Of PWX

1. Select the data map that you want to import from
   PWX
2. Click ok

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Import the source into PowerCenter Designer
Demonstration Of PWX
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Metadata Extensions
Demonstration Of PWX
Note here, there is a Metadata Extension created
automatiqually in the source VSAM.
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Use the Source in a mapping
Demonstration Of PWX
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Use the Source in a mappingWith Occurs
Demonstration Of PWX
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Create new Connection for PWX
Demonstration Of PWX

1. In the Workflow manager, create new Application
   Connection to use in the session,
2. Choose PWX NRDB Batch
3. Click OK

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Create new Connection for PWX
Demonstration Of PWX

1. In the Workflow manager, create new Application
   Connection to use in the session,
2. Choose PWX NRDB Batch
3. Choose Code Page IBM1047
4. Click OK

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PC Session runs
Demonstration Of PWX

1. When the PC session runs, it would talk to the
   PWX Listener on the Integration Server, and the
   PWX Listener would open the file, read it, and
   send the data to the PowerCenter session

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Creating a Data mapWhat we have done
\DATAMAPS\Training.EBCDIC.dmp
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Example 2 Variable Length VSAM file
Coming soon
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Variable Length VSAM examples

• Example 1
• A VSAM data set consists of two record types of
  different lengths distinguished by the value in a
  field that is in the same location in both record
  types.
• Below is a sample COBOL copybook of the records
  definition
• 01VSAMVAR-REC1.
• 10 KEY-FIELDPIC X(2).
• 10 REC-TYPEPIC X.
• 10 CHAR-FIELDPIC X(10).
• 01VSAMVAR-REC2.
• 10 KEY-FIELDPIC X(2).
• 10 REC-TYPEPIC X.
• 10 CHAR-FIELDPIC X(20).
• Example 2
• A VSAM data set consists of one record type whose
  last field is optional.
• Below is a sample COBOL copybook of the record
  definition

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Windows Registry
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Upgrade or Migrate Datamaps across different
platforms using PowerExchange Navigator
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import the datamaps that you want to migrate.
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Copy the .dmp files to theLocal Path for your new
PowerExchange Navigator environment.
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Save each datamap in the new Navigator
environment
The datamaps will show in your Navigator datamaps
window and the .dmp files will be created in the
Local Path.
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Configure a PowerExchange Datamap to replace
invalid pack data with zeros

• To replace invalid pack data with zeros enable
  Data Checking in the PowerExchange Datamap
  Properties.
• Click the Data Checking tab.
• Select the Packed Data Field option.
• Select Replace according to Data Defaults from
  the How do you want to Handle bad Field Data
  list.
• Go to the Data Defaults tab.
• Select All or Single Character under Character
  Replacement.
• Enter '0' (zero) in Value.
• This will replace all invalid packed Data
  fields with zeros.

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Configure a PowerExchange Datamap to retain
record values of bad data

• Is it possible to extract the records or find the
  record information any where which gets skipped
  as bad data, so that we can report it and send it
  to our concerned team and make sure that we dont
  have the bad data in the source file.
• To retain records with bad data in the source
  file do the following
• Select the Data Checking option in the Datamap
  properties.
• Select "Skip row and write log file msg" under
  the How do you want to handle Bad Field Data?
  list. This option will skip the records with bad
  data and writes the record to the PowerExchange
  Listener Detail log.
• Clear the Suppress Data Logging to retain the
  record.

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VSAM

• VSAM stands for Virtual Storage Access Method. It
  is a method of managing files that is used mainly
  on mainframes but also on PCs. Specifically, VSAM
  can speed up access to file data by using a
  reverse index of records appended to files. This
  index is called a B tree.
• VSAM is a kind of record-oriented file system. In
  this kind of dataset, information is stored as a
  collection of records. VSAM records can be of any
  length they need not be of one set length. They
  are, however, organized into blocks called
  Control Intervals, which are measured in bytes.
  These Control Intervals are further organized
  into Control Areas, which are measured in much
  larger units.

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Overriding Connection Attributes in the Parameter
File

• If you use a session parameter to define a
  connection for a source or target, you can
  override the connection attributes in the
  parameter file. Use the FTPConnectionName,
  QueueConnectionName, LoaderConnectionName, or
  AppConnectionName session parameter.
• When you install PowerCenter, the installation
  program creates a template file named
  ConnectionParam.prm that lists the connection
  attributes you can override for FTP, queue,
  loader, and application connections. The
  ConnectionParam.prm file is located in the
  following directory ltPowerCenter Installation
  Directorygt/server/bin

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UPACKED Fields

• For the UPACKED Fields. In the output,  we expect
  sign as F instead it was coming as C.  This
  was an issue in the configuration settings. To
  resolve this we need to add the following setting
  in dbmover.cfg file.
• NUMERICSIGNF

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Many Thanks for you time today!