In DTS, what is an "extraction" process?

The extraction process in DTS, which stands for Data Transformation Services, refers specifically to the act of retrieving data from a source system. This is a fundamental step in data integration and ETL (Extract, Transform, Load) processes, where data is pulled from various sources, such as databases, files, or other data stores, to be used for further processing or analysis.

This option is crucial because effective data extraction helps ensure that the relevant and necessary information is gathered for subsequent transformation and loading into a destination system. Other processes mentioned, such as deleting data or summarizing it, pertain to different operations in data management and do not align with the primary function of extraction, which is focused on retrieval rather than manipulation or verification. Therefore, understanding that extraction is solely about pulling in data helps clarify its distinct role within the broader context of data handling and processing.