2. Designer Purpose
Designer is used to create mappings and
mapplets to specify how to move and
transform data between source and targets
Designer helps create the source definitions,
target definitions and transformations to build
mappings.
3. Designer Tools
Source Analyzer
– Import or create source definitions
Warehouse Designer
– Import or create target definitions
Transformation Developer
– Used to create reusable transformations
Mapplet Designer
– To create reusable Mapplets
Mapping Designer
– To create Mappings and non- reusable transformations
4. Transformations
A transformation is an object that performs a
specific function in a mapping, such as
looking up data or performing calculation or
aggregation.
5. Mappings
Mappings represents data flow between
source and targets.
Mapping is used by Informatica server to
read, transform and load data at the time of
execution of an ETL task.
6. Mapplets
It contains a set of transformations and
allows you to reuse the transformation logic
in multiple mappings. Mapplet can include
source definition also.
10. Designer Windows
Navigator. Use to connect to and work in multiple repositories
and folders. You can also copy and delete objects and create
shortcuts using the Navigator.
Workspace. Use to view or edit sources, targets, mapplets,
transformations, and mappings. You can work with a single tool
at a time in the workspace. You can use the workspace in
default or workbook format.
Status bar. Displays the status of the operation you perform.
Output. Provides details when you perform certain tasks, such
as saving your work or validating a mapping. Right-click the
Output window to access window options, such as printing
output text, saving text to file, and changing the font size.
11. Using Business Documentation
Business documentation provides details about a
repository object or transformation expression.
The Designer allows you to create and edit links to
business documentation that you have developed for
repository objects.
The documentation must reside on a local machine,
network server, or company intranet or internet web
site in a Windows environment.
12. Document Formats
You can develop business documentation in
HTML, PDF, or any text format, for the
following repository objects:
Sources and targets
Transformations
Mapplets
Mappings
14. Designer Tasks
Add a Repository
In order to access information stored in a
repository, Repository definition must be
added to the designer.
Once repository is added, the repository
should be connected in order to access the
information in it.
15. Open and Close Folder
Once connected, the folders in repository
become available in the left pane of designer
window.
Once in the folder, the designer tools can be
used.
Folder can be opened by double clicking it.
Folder can be close by selecting it and
disconnecting using the disconnect button.
17. Sources
Sources can be created in source analyzer from:
Relational tables, views or synonyms
Cobol files
Flat Files – Fixed width/delimited
XML Sources
Web Service Provider
Source definition is usually imported and not
created as it should match exactly with source.
18. Updating source definitions
Designer propagates the changes to
mappings when the source definition
changes.
Mappings may become invalid in some
cases like deleting a column used in
mapping.
Mappings need to be edited and revalidated
in such cases.
37. Target Creation
Import target definition
Create based on source definition by
dragging source definition to Warehouse
analyzer
Manually create Target Definition
Design several related targets and their
relationship as a ‘Schema’. This is also used
to create Cubes and Dimensions using
wizards.
38. Create Target Tables
In case of manual creation/editing of targets,
Designer generates DDL and executes it to
create target tables.
This includes creation of new targets,
dropping and creating changed targets or
dropping and creation of indexes.
61. Mapping
Mapping is an ETL Program.
Every mapping must contain the following:
Source Definition
Transformation
Target Definition
Connectors
It may also contain ‘Mapplets’
62. Creating a Mapping
Create Source, Target and Reusable Objects
Add Source and Targets (Drag in to
Mapping)
Add Transformation and Transform Logic
Connect the Mapping
Validate the Mapping
Save the Mapping
63. Default Source Transformations in
a Mapping
Sources always need Transformations that
determine how the data is read and
extracted based on its type
Source Qualifier – Relational and Flat File
Normalizer – Cobol Source
Application Source Qualifier – Application
Source
XML Source Qualifier – XML Sources
64. Transformation
Transformation is a repository object
It generates, modifies and passes data
Transform logic is defined in a transformation
Informatica provides pre-built transforms
Each transform has certain rules that apply to
it
Transforms can be created for reuse in
multiple mappings
65. Ports
Input Ports – Receive Data
Output Ports – Pass Data
Input/Output Ports – Receive data and pass
it unchanged
66. Component Ports
Sources - Only Output ports
Targets - Only Input Ports
Mapplets - Input/output ports
Transformations – Depends on the
transformation and its application
70. Source Qualifier Transformation
By Default created for Relational and flat file sources
Source qualifier qualifies a relational or flat file source definition
in a mapping
Source qualifier represents the rows that Informatica server
reads when it executes a session
Source qualifier displays transformation data types. These
determine how the source database binds data when server
reads it. Do not alter data types in Source qualifier
81. Validating Mapping
Port Connection Validation
– Required Ports are connected
– All connections are valid
Expression Validation
Object Validation
– Objects and their instances
83. Creating shortcuts
Shortcuts can be created by dragging objects
into the destination shared folder or into
mapping.
Shortcuts can not be created in non-shared
folders
84. Dependencies
Designer allows developer to view
dependencies to see the impact of changes
being made.
Dependencies can be viewed for source,
target, transformation, mapplet and
mappings.
Example: primary key-foreign key
dependency
86. Mapping Exercise
Add Customer Source
View Source Qualifier Properties
Add Customer Target
Manually Link Few Ports
Auto link rest of the ports
Validate and see validation result/Save
Create Copy/Shortcuts
View dependencies
87. Debugger
Designer provides debugger to execute the
mapping to determine the errors and data
condition at multiple developer defined break
points.
Debugger uses a session on Informatica
server
88. Debug Process
Create Breakpoints
Configure the Debugger
Run the debugger
Monitor the debugger
– Debug Log
– Target Window
– Instance Window
Modify Data and Break points
90. Breakpoints
Instance Name
– Create a global breakpoint (Applicable on all
rows)
– Create against a single transformation
Breakpoint Types
– Data
Data condition
– Error
92. Configure Break Points
Error
– No Ports can be specified
– Specify no. of errors before stopping
Data
– Global
Specify no. of rows to skip before stopping
“Any Port” set to IsNull or IsDefault
No Port condition (Stops at defined row count)
– Transformation
Specify no. of rows to skip before stopping
Specify Multiple Port Conditions for one Breakpoint
Specify Multiple breakpoints
93. Transformation Conditions
Data condition can be applied to following
port parameters
– Port Value
– Row Type (Insert/Update/delete/reject)
– Rowid
– Any Port (IsNull/IsDefault)
94. Session
Session object defines run time properties of
a Mapping.
– Connection details
– Log file Names
– DML operation
– Etc.
Session Types
– Workflow Session
– Debug Session
95. Debugger Session Types
If Informatica server has executed the mapping
already
Existing non reusable session
Existing reusable session
If it’s a new execution on the server
New debug session
96. Configuring The Debugger
Informatica Server and Session Types
Session Information
Session Configuration
Target Options
106. Continuing the Debugger
Continue to next break
– Continues until encounters a breakpoint
Continue to next instance
– Continues until reaches next transformation or encounters a
breakpoint
Step to a specified instance
– Continues until reaches the user selected transformation or
encounters a breakpoint
– Can not step to sources, targets, unconnected
transformations
108. Modify Data
When debugger pauses, current instance
displays in instance window. Users can
– Modify output data
– Change Null data to Not Null Data
– Change Not Null to Null
– Modify Row Types (Insert/Update etc.)
