SAP HANA 和 BWA的比较

Technically

SAP HANA is far more than BWA

Standard interfaces ( SQL, HTTP, REST, MDX )

Real persistence layer ( not just flat files )   --->  redo/undo logs, backup/recovery,

There is a lot of BWA/TREX in HANA

Column store, distributed computing, calculation engine

Beyond BWA

Row store, persistence, transaction (MaxDB), SQL Parser,

Data Models / Content

BWA relies completely on SAP BW

You only load infocubes into BWA

technically trivial data model, Automatic creation of relation / join conditions

BWA has BW on top

Complex logic? ---> Do it in BW

Dewfining the data mode? ---> Do it in BW

Analysis authorizations? ---> Do it in BW

SAP HANA is intended as a Data Mart ( and BWA clearly is not ) ---> flexibility ( not tied to BW )

参考：

HANA能够作为传统交易型数据库，又能够作为分析型数据库来使用。

HANA还提供了标准化的SQL接口，包括SQL、MDX等，还有建模环境，分析和统计函数库。

HANA还能够以XS Engine和River等形式在数据库之上提供完整的应用平台支持，所有这些都是BWA所无法企及的。