In a reader, if an attribute contains a dataset path for multiple datasets, which reader parameter selects which datasets are read?

In a reader, if an attribute contains a dataset path for multiple datasets, which reader parameter selects which datasets are read?

• A. Dataset
• B. Format
• C. Feature Types to Read
• D. Spatial Filter

Answer: (A)

The Dataset parameter controls which datasets are read from a reader when the source contains multiple datasets. If an attribute holds a dataset path for several datasets, this parameter lets you pick the specific dataset at run time, effectively directing the reader to pull in that particular dataset. The other options don’t perform this role: the Format parameter identifies the data format, the Feature Types to Read parameter selects which feature types within the source to ingest, and the Spatial Filter applies geometry-based constraints after reading. Using the Dataset parameter with the attribute value enables data-driven selection of the desired dataset.

The Dataset parameter controls which datasets are read from a reader when the source contains multiple datasets. If an attribute holds a dataset path for several datasets, this parameter lets you pick the specific dataset at run time, effectively directing the reader to pull in that particular dataset. The other options don’t perform this role: the Format parameter identifies the data format, the Feature Types to Read parameter selects which feature types within the source to ingest, and the Spatial Filter applies geometry-based constraints after reading. Using the Dataset parameter with the attribute value enables data-driven selection of the desired dataset.