What are Mapplets in Informatica?
A mapplet is a reusable object containing a set of transformations that you can use in multiple mappings. Use a mapplet in a mapping. Or, validate the mapplet as a rule. Transformations in a mapplet can be reusable or non-reusable. If you add a Sequence Generator transformation to a mapplet, it must be reusable.
What is mapping and mapplet?
Mapping is a set of transformations used to Map source tables to target data tables.Mapplet is nothing but a reusable Mapping.. In Mapplet you won’t specify the actual targets..
What is mapplet in ETL?
Mapplet: Set of reusable transformations which can used in different mappings. It is used to implement ETL logic which is common in different scenarios. For example: Lookup on Time dimension and implementing Time Zone conversions. Mapping: Set of transformations which are used to implement ETL logic.
What are active and passive transformations in Informatica?
A transformation can be active or passive. An active transformation can change the number of rows that pass through the transformation. 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.
Why lookup is used in Informatica?
Lookup transformation is used to look up a source, source qualifier, or target to get the relevant data. It is a kind of join operation in which one of the joining tables is the source data, and the other joining table is the lookup table.
Which object Cannot be used in mapplet?
You cannot include the following objects in a mapplet: Normalizer transformations. Cobol sources. XML Source Qualifier transformations.
What is the difference between Worklet and workflow in Informatica?
A workflow is a set of instruction on how to execute tasks such as sessions (mappings), sending email, os commands (shell/batch) etc. A worklet is a set of instructions that can be reused in several workflow.
Which transformation we Cannot use in mapplet?
Is lookup active or passive transformation?
When you configure the Lookup transformation to return a single row, the Lookup transformation is a passive transformation. When you configure the Lookup transformation to return multiple rows, the Lookup transformation is an active transformation. You can use multiple Lookup transformations in a mapping.
Is router active or passive transformation?
The Router transformation is an active transformation that you can use to apply a condition to incoming data.