What is Sequence Generator Transformation?
Grouping generator change is inactive so it doesn't influence the number of info lines. The grouping generator is utilized to create essential key qualities and it's utilized to produce numeric succession values like 1, 2, 3, 4, 5, and so forth.
For instance, you need to dole out arrangement values to the source records, then, at that point, you can utilize the succession generator. The created succession values can be like 5, 10, 15, 20, 25, and so forth, or 10, 20, 30, 40, 50, and so on. contingent on the designed properties of the change.
To produce the succession numbers, we generally utilize the NEXTVAL segment.
Properties of Sequence Generator Transformation
Begin Value - It is the primary worth that will be produced by the change, the default esteem is 0.
Increase by - This is the number by which you need to augment the qualities. The default esteem is 1.
End esteem - It is the most extreme worth that the change ought to create.
Cycle - on the off chance that this choice is set, subsequent to arriving at the finish of the worth, the change restarts from the very outset esteem.
In this model, we will produce succession numbers and store in the objective.
Sequence Generator Transformation in Informatica plays a
pivotal role. It is a powerful tool for generating sequential values and
assigning them to data rows systematically. In this article, we'll delve into
the significance, functionality, and practical applications of the Sequence
Generator Transformation in Informatica.
Understanding the Sequence Generator Transformation
What is the Sequence Generator Transformation?
The Sequence Generator Transformation in Informatica is
designed to generate unique sequential values. These values are typically used
as surrogate keys, identifiers, or for any purpose where a sequential order is
required. It can generate values in ascending or descending order and has a
range of customizable properties.
Key Functions of Sequence Generator Transformation
The Sequence Generator Transformation offers several key
functions:
Configuration and Usage
Configuration Steps
To configure the Sequence Generator Transformation
effectively, follow these steps:
1. Create
Output Ports: Define output ports in the Sequence Generator Transformation.
These ports will hold the generated sequential values.
2. Configure
Properties: Specify the properties for the sequence, including the starting
value, step value, minimum and maximum values, and reset conditions.
Practical Applications
The Sequence Generator Transformation is versatile and finds
applications in various scenarios:
Performance Considerations
Efficiency is crucial when working with the Sequence
Generator Transformation:
Stage 1 - Create an objective table with the accompanying content.
Stage 2-Import the table in Informatica as target table
Stage 3 - Create another planning and import EMP source and EMP_SEQUENCE target table
Arrangement Transformation in Informatica with EXAMPLE
Stage 4 - Create another change in the planning
Select grouping change as the kind
Enter change name "seq_emp"
Select Create choice
Grouping Transformation in Informatica with EXAMPLE
Stage 5 - Sequence generator change will be made, select the done choice
Arrangement Transformation in Informatica with EXAMPLE
Stage 6 - Link the NEXTVAL segment of grouping generator to SNO section in target
Arrangement Transformation in Informatica with EXAMPLE
Stage 7 - interface different sections from source qualifier change to the objective table
Grouping Transformation in Informatica with EXAMPLE
Stage 8 - Double snap on the grouping generator to open property window, and afterward
Select the properties tab
Enter the properties with Start esteem =1, and leave the rest properties as default
Select OK button
Grouping Transformation in Informatica with EXAMPLE
Presently save the planning and execute it in the wake of making the meeting and work process.
The snow section in the objective would contain the succession numbers produced by the arrangement generator change.
In our model, the groupings will be like 1 - Scott, 2 - King, 3 - Adam, 4 - Miller, and so forth.
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