SAP HANA influenced by MaxDB
History
During the early development of SAP HANA, a number of technologies were developed or acquired by SAP SE. These included TREX search engine (in-memory column-oriented search engine), P*TIME (in-memory online transaction processing (OLTP) Platform acquired by SAP in 2005), and MaxDB with its in-memory liveCache engine.The first major demonstration of the platform was in 2011: teams from SAP SE, the Hasso Plattner Institute and Stanford University demonstrated an application architecture for real-time analytics and aggregation using the name HYRISE. Former SAP SE executive, Vishal Sikka, mentioned this architecture as "Hasso's New Architecture". Before the name "HANA" stabilized, people referred to this product as "New Database". The software was previously called "SAP High-Performance Analytic Appliance".A first research paper on HYRISE  was published in November 2010.  The research engine is later released open source in 2013, and was  reengineered in 2016 to become HYRISE2 in 2017.The first product shipped in late November 2010. 
By mid-2011, the technology had attracted interest but more experienced business customers considered it to be "in early days".
HANA support for SAP NetWeaver Business Warehouse (BW) was announced in September 2011 for availability by November.In 2012, SAP promoted aspects of cloud computing. In October 2012, SAP announced a platform as a service offering called the SAP HANA Cloud Platform and a variant called SAP HANA One that used a smaller amount of memory.In May 2013, a managed private cloud offering called the HANA Enterprise Cloud service was announced.In May 2013, Business Suite on HANA became available, enabling customers to run SAP Enterprise Resource Planning functions on the HANA platform.S/4HANA, released in 2015, written specifically for the HANA platform, combines functionality for ERP, CRM, SRM and others into a single HANA system.
S/4HANA is intended to be a simplified business suite, replacing earlier generation ERP systems. While it is likely that SAP will focus its innovations on S/4HANA, some customers using non-HANA systems have raised concerns of being locked into SAP products. Since S/4HANA requires an SAP HANA system to run, customers running SAP business suite applications on hardware not certified by SAP would need to migrate to a SAP-certified HANA database should they choose the features offered by S/4HANA.Rather than versioning, the software utilizes service packs, referred to as Support Package Stacks (SPS), for updates. Support Package Stacks are released every 6 months.In November 2016 SAP announced SAP HANA 2, which offers enhancements to multiple areas such as database management and application management and includes two new cloud services: Text Analysis and Earth Observation Analysis.
HANA customers can upgrade to HANA 2 from SPS10 and above. Customers running SPS9 and below must first upgrade to SPS12 before upgrading to HANA 2 SPS01.