You can use Metadata Command Center to extract metadata from a source system.
A source system is any system that contains data or metadata. For example, Denodo is a source system from which you can extract metadata through a Denodo catalog source with Metadata Command Center. A catalog source is an object that represents and contains metadata from the source system.
Before you extract metadata from a source system, you first create and register a catalog source that represents the source system. Then you configure capabilities for the catalog source. A capability is a task that Metadata Command Center can perform, such as metadata extraction, lineage discovery, data profiling, data classification, or glossary association.
When Metadata Command Center extracts metadata, Data Governance and Catalog displays the extracted metadata and its attributes as technical assets. You can then perform tasks such as analyzing the assets, viewing lineage, and creating links between those assets and their business context.
The following table describes the capabilities of the catalog source:
Capability
Description
Lineage Discovery
Builds the complete lineage of a catalog source by recommending endpoint catalog source objects to assign to reference catalog source connections. When you run the catalog source job, Metadata Command Center assigns the reference catalog source connections to CLAIRE recommended endpoint catalog source objects. You can then view the list of CLAIRE recommendations and accept or reject them.
Extraction and view process
To extract metadata from a source system, configure the catalog source and run the extraction job in Metadata Command Center. Then view the results in Data Governance and Catalog.
The following image shows the process to extract metadata from Denodo:
After you verify prerequisites, perform the following tasks to extract metadata from Denodo:
1Register a catalog source. Create a catalog source object, select Denodo, and then select and test the connection.
2Configure the catalog source. Specify the runtime environment and configure parameters for metadata extraction. Optionally, add filters to include or exclude source system assets from metadata extraction. You can also configure other capabilities such as data profiling and quality, data classification, or glossary association.
3Optionally, associate stakeholders. Associate users with technical assets, giving the users permission to perform actions determined by their roles.
4Run or schedule the catalog source job.
5Optionally, if the catalog source job generates referenced asset objects, you can assign a connection to referenced source system assets.
You can view the lineage with object references without performing connection assignment. After connection assignment, you can view the objects.
For connection-aware scans, run the catalog source again after you assign connections to referenced source system assets.
After you run the catalog source job, you view the results in Data Governance and Catalog.
About the Denodo catalog source
You can use the Denodo catalog source to extract metadata from a Denodo source system.
Denodo is a data virtualization platform that allows access to data from various sources without the need for physical data transfer or replication.
Extracted metadata
You can use the Denodo catalog source to extract metadata from a Denodo source system.
Metadata Command Center extracts the following metadata from a Denodo source system:
•Database
•Base view
•Derived view
Note: Base views and derived views appear as tables and views in Data Governance and Catalog.
Data sources
Metadata Command Center extracts metadata from Denodo Platform for the following data sources:
•PostgreSQL
•Snowflake
•Oracle
•Microsoft SQL Server
•Microsoft Azure SQL Server
•Databricks
•Google BigQuery
Compatible connectors
Before you configure a catalog source, you must connect to the Denodo source system.
Use the Denodo connector to connect to the Denodo source system.
For information about configuring a connection, see Connections.