Datamart transformation

Overview

Datamart transformation is the transformation type used for data mart interface views. Use it to expose prepared transformation output through the data mart layer, where stars, facts, dimensions, and model-facing structures need their own generated view.

Function

A Datamart transformation is normally created and maintained by AnalyticsCreator from data mart configuration instead of being selected as a normal new transformation type. When a source transformation is assigned to a star or model-facing structure, AnalyticsCreator can create the data mart view that presents that output in the target data mart schema.

The generated view uses the configured star transformation name, the selected data mart schema, the source output columns, and any star-level filter. This keeps the data warehouse transformation logic separate from the presentation view that is consumed by the data mart.

When an existing Datamart transformation is opened, the editor focuses on the VIEW tab and keeps the transformation type locked. Structural changes are made in the source transformation and data mart configuration, then the data mart transformation is regenerated or refreshed.

Access

Open an existing Datamart transformation from the transformation list, or manage its source through the Data mart area where stars and models are maintained. It is not intended as a direct choice in the standard New Transformation wizard.

How to access

Navigation tree

Schema -> Transformations -> open a datamart transformation

Toolbar

ETL -> List -> Transformations or Data mart -> List -> Stars / Models

Diagram

Open an existing datamart transformation node from the architecture diagram when present

Visual element

Transformation editor -> TransType / VIEW tab

Screen overview

IDPropertyDescription
1NameShows the generated datamart transformation name, usually aligned with the star-facing view name.
2SchemaShows the data mart schema where the interface view is maintained.
3TransTypeIdentifies the transformation as a Datamart transformation and keeps the type locked for generated data mart views.
4Hist TypeShows the historization behavior inherited from the source transformation used for the data mart view.
5VIEW tabDisplays the generated view definition that presents the source output in the data mart schema.
6Persist tableShown as read-only because the data mart view is generated from source and star settings.
7Persist packageShown as read-only for this generated view type.
8TablesThe table definition is controlled by the source transformation and data mart assignment rather than edited directly here.
9ColumnsColumns come from the source output selected for the data mart view.
10ReferencesRelationships are maintained through the source transformation and data mart model configuration.
11Star / model configurationDefines the data mart context, view name, and optional filter used to generate the Datamart transformation.
12Create in DWHGenerates or refreshes the data mart interface view in the data warehouse after the underlying configuration is saved.

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