Extracting and Transforming tools or RDBMS for unstructured and semi-structured data

Third Party Software
Enthusiast

Extracting and Transforming tools or RDBMS for unstructured and semi-structured data

Which tools or RDBMS are best for extracting and Tranforming unstructured data?

Or is it better to write unix, perl or python scripts?

Load of stream data can be for long time.

Thanks and regards,

Raja