I need some clarification regarding the databases provided by HANA Cloud. So far, the HANA's presentation I have attended emphasized on the in-memory technology and the potentiel of HANA to provide OLTP as well as OLAP capabilities with one database. However, through the different HANA packages, the first one suggests one database (RDBMS), while the others provide the HANA additionally. My question is twofolds: Is the RDBMS also an in-memory database? If not, how should I build my application if I have to decide between data that I have to put in the RDBMS and that I have to put in HANA? Thank you very much for your help.
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