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PowerCenter can use flat files as sources, targets, and lookups in mappings. Metadata Manager displays the following types of flat files from a PowerCenter source repository in the metadata catalog:
XML
VSAM
Delimited
Fixed-width
In PowerCenter, you can assign an Integration Service to run the workflow. The metadata catalog displays flat file sources and targets from a PowerCenter repository under the corresponding Integration Service. If the flat file is located in a repository with no Integration Service configured, the metadata catalog displays the flat file under the object called “Unknown Service.”
Metadata Manager displays field-level details in data lineage for columns in delimited and fixed-width flat files. Metadata Manager determines the columns in the delimited and fixed-width flat files using source and target definitions in PowerCenter. Since XML and VSAM flat files do not contain columns, Metadata Manager does not display field-level details in data lineage for these flat file types.