What is normalizer transformation in Informatica?

The Normalizer transformation is an active transformation that transforms one incoming row into multiple output rows. When the Normalizer transformation returns multiple rows from an incoming row, it returns duplicate data for single-occurring incoming columns.

How normalizer is used in Informatica with example?

Normalizer is an active transformation, used to convert a single row into multiple rows and vice versa. It is a smart way of representing your data in more organized manner. In this case, the class score column is repeating in four columns….Normalizer Transformation in Informatica with EXAMPLE.

What is GK_ and Gcid in normalizer transformation with example?

GCID: The normalizer transformation generates thisID column for each set of multiple occurring column. It act as the undex for the instance of the multiple-occurring data. For example, if a column occurs 3 times in a source record, the normalizer returns a value of 1,2 or 3 in the generated column ID.

How many types of transformation are there in Informatica?

There are 3 Informatica transformations viz. External Procedure, Lookup, and Stored Procedure which can be unconnected in a valid mapping (A mapping which the Integration Service can execute).

Will union transformation remove duplicates?

The Union transformation does not remove duplicate rows. To remove Duplicate rows, we must add another transformation such as a Router or Filter Transformation.

Can we connect 2 active transformations in Informatica?

An active transformation can change the number of rows that pass through the transformation. You cannot connect multiple active transformations or an active and a passive transformation to the same downstream transformation or transformation input group. You might not be able to concatenate the rows.

What is Gcid in normalizer transformation?

The normalizer transformation has a generated column ID (GCID) port for each multiple-occurring column. The GCID is an index for the instance of the multiple-occurring data. For example, if a column occurs 3 times in a source record, the normalizer returns a value of 1,2 or 3 in the generated column ID.

Why is router active transformation?

Router is an Active Transformation, Most of the time we use router only when we are going to apply multiple conditions on a records, It is absolutely possible for a record to satisfy one or more conditions thus making the router Active, Router is the only active transformation where the number of output records from …

Why is rank active transformation?

Rank transformation is an active transformation, as it affects the number of output rows. The rank transformation has an output port by which it assigns a rank to the rows. Our requirement is to load top 3 salaried employees for each department; we will implement this using rank transformation.

Is an example of passive transformation?

For example, the Filter transformation is active because it removes rows that do not meet the filter condition. A passive transformation does not change the number of rows that pass through the transformation.

Which transformation Cannot be made reusable?

If we change any properties of the transformation it will automatically reflects in the mapping transformations. Here source qualifier transformation is the transformation that cannot be reused.

How do you remove duplicates in union transformation in Informatica?

Union transformation does not remove duplicates. To remove the duplicate rows use sorter transformation with “select distinct” option after the union transformation. The union transformation does not generate transactions. You cannot connect a sequence generator transformation to the union transformation.

How many transformations are there in Informatica?

There are two types of transformations in Informatica that are active and passive. Let us have a look at these with examples. Transformations in Informatica with Examples. In Informatica, active transformations modify rows and number of input rows while passive ones do not change several input rows and no new rows are created or existing dropped.

What are Informatica transformations?

Informatica Transformation Types. A transformation is a repository object that generates, modifies, or passes data. The Designer provides a set of transformations that perform specific functions. For example, an Aggregator transformation performs calculations on groups of data.

What is a transformation in Informatica?

Transformations is in Informatica are the objects which creates, modifies or passes data to the defined target structures (tables, files or any other target). The purpose of the transformation in Informatica is to modify the source data as per the requirement of target system. Nov 13 2019