1. Aggregator  Performs aggregate calculations  Components of the Aggregator Transformation Aggregate expression Group by port Sorted Input option Aggregate cache  Aggregate Functions AVG, COUNT, FIRST, LAST, MAX, MEDIAN, MIN, PERCENTILE, STDDEV, SUM, VARIANCE

2. Filter  It provides the means for filtering rows in a mapping  All ports in a Filter transformation are input/output  Only rows that meet the condition pass through it  Cannot concatenate ports from more than one transformation into the Filter transformation  To maximize session performance, include the Filter transformation as close to the sources in the mapping as possible  Does not allow setting output default values

3. Router  A Router transformation tests data for one or more conditions and gives the option to route rows of data that do not meet any of the conditions to a default output group  There are two types of output groups: User-defined groups Default group  Create one user-defined group for each condition that you want to specify

4. Filter and Router – Compare

5. Sequence Generator  Generates numeric values  It provides two output ports: NEXTVAL and CURRVAL  These ports can not be edited or deleted  Can not add ports to the sequence generator transformation  When NEXTVAL is connected to the input port of another transformation, the Informatica Server generates a sequence of numbers

6. Stored Procedure Transformation  A Stored Procedure transformation is an important tool for populating and maintaining databases a precompiled collection of Transact-SQL statements and optional flow control statements, similar to an executable script used to call a stored procedure  The stored procedure must exist in the database before creating a Stored Procedure transformation  One of the most useful features of stored procedures is the ability to send data to the stored procedure, and receive data from the stored procedure  There are three types of data that pass between the Informatica Server and the stored procedure: Input/Output parameters - For many stored procedures, you provide a value and receive a value in return Return values - Most databases provide a return value after running a stored procedure Status codes - Status codes provide error handling for the Informatica Server during a session

7. Sorter  A Sorter Transformation is used to sort Data.  Types of Sorting: Ascending/Descending Case Sensitive - Does Case sensitive ascending or descending sort. Distinct - Gives distinctly sorted output rows.  A sorter can be used to sort data from a Relational Source or a Flat file. The Sort key has to be specified based on which the sort would be done.