Hi Carlos,
you can create your tables within a SAP HANA Native Development project (XS project) using hdbtable files or with Core Data Services (hdbdd; since SP5). The project and the files are assigned to packages of course.
For more information please have a look to the Developer Guide (http://help.sap.com/hana/SAP_HANA_Developer_Guide_en.pdf):
- Chapter 4.1 (regarding CDS)
- Chapter 4.2 (regarding hdbtable)
- Chapter 3.3 (regarding XS projects)
Just for information: On https://open.sap.com at the moment the course "Next Steps in Software Development on SAP HANA" is running. The units of week 1 and week 2 are very helpful regarding your questions.
Best regards,
Florian