Transformations can be classified as active or passive, connected or unconnected.
A transformation can be called as an active transformation if it performs any of the following actions.
Note: You cannot connect multiple active transformations or an active and passive transformation to the downstream transformation or transformation same input group. This is because the integration service may not be able to concatenate the rows generated by active transformations. This rule is not applicable for sequence generator transformation.
Transformations which does not change the number of rows passed through them, maintains the transaction boundary and row type are called passive transformation.
Transformations which are connected to the other transformations in the mapping are called connected transformations.
An unconnected transformation is not connected to other transformations in the mapping and is called within another transformation, and returns a value to that.
The below table lists the transformations available in Informatica version 9:
|Aggregator||Active/Connected||Performs aggregate calculations.|
|ApplicationSourceQualifier||Active/Connected||Represents therows that the Integration Service reads from an application, such as an ERP source, when it runs a session.|
|Custom||ActiveorPassive/Connected||Calls a procedure in a shared library or DLL.|
|DataMasking||Passive/Connected||Replaces sensitive production data with realistic test data for non-production environments.|
|Expression||Passive/Connected||Calculates a value.|
|ExternalProcedure||Passive/ConnectedorUnconnected||Calls a procedure in a shared library or in the COM layer of Windows.|
|HTTP||Passive/Connected||Connects to an HTTP server to read or update data.|
|Input||Passive/Connected||Defines mapplet input rows. Available in the Mapplet Designer|
|Java||ActiveorPassive/Connected||Executes user logic coded in Java.The byte code for the user logic is stored in the repository|
|Joiner||Active/Connected||Joins data from different databases or flat file systems.|
|Lookup||ActiveorPassive/ConnectedorUnconnected||Lookup and return data from a flat file, relational table, view, or synonym.|
|Normalizer||Active/Connected||Source qualifier for COBOL sources. Can also use in the pipeline to normalize data from relational or flat file sources.|
|Output||Passive/Connected||Defines mapplet output rows. Available in the Mapplet Designer.|
|Rank||Active/Connected||Limits records to a top or bottom range.|
|Router||Active/Connected||Routes data into multiple transformations based on group conditions.|
|SequenceGenerator||Passive/Connected||Generates primary keys.|
|Sorter||Active/Connected||Sorts data based on a sort key.|
|SourceQualifier||Active/Connected||Represents the rows that the Integration Service reads from a relational or flat file source when it runs a session.|
|SQL||ActiveorPassive/Connected||Executes SQL queries against a database.|
|StoredProcedure||Passive/ConnectedorUnconnected||Calls a stored procedure.|
|TransactionControl||Active/Connected||Defines commit and rollback transactions.|
|Union||Active/Connected||Merges data from different databases or flat file systems.|
|UnstructuredData||ActiveorPassive/Connected||Transforms data in unstructured and semi-structured formats.|
|UpdateStrategy||Active/Connected||Determines whether to insert, delete, update, or reject rows.|
|XMLGenerator||Active/Connected||Reads data from one or more input ports and outputs XML through a single output port.|
|XMLParser||Active/Connected||Reads XML from one input port and outputs data to one or more output ports.|
|XMLSourceQualifier||Active/Connected||Represents the rows that the Integration Service reads from an XML source when it runs a session.|