Since Disclosure Management 10.1 SP06 (aka Stack600) you can create a HANA data-source and retrieve data directly from HANA (queries and views)
This document explains what is needed for the setup of this data-source
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Note: depending on whether you use a 32-bit or 64-bit Office version (and therefore also the DM client), you need to select the matching HANA client. You cannot use a 64-bit HANA client with a 32-bit DM client !