Creating virtual objects in Watson Query
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You can use the Watson Query service to create virtual objects from various data sources so that you can query and use the data as if it came from a single source. Watson Query supports creating a virtual object from a single table, from multiple tables, or from files. You can also create a join view from multiple virtualized tables.
About this task
The Watson
Query service provides multiple methods to create virtual
objects:
When you create virtual objects, it is important to gather statistics for the objects to ensure good query performance. For more information, see Improving query performance in Watson Query.