描述：

An easy-to-understand guide, covering topics using practical scenarios and live examples, and answering all possible questions. If you are a solution architect, developer, modeler, sales leader, business transformation managers, directors, COO, or CIO; this book is perfect for you. If you are interested in other technologies and want to jump-start into SAP, this book gives you the chance to learn SAP HANA. Basic knowledge of RDBMS concepts enough is to get you started.

作者简介

Chandrasekhar Mankala is an emerging technical architect in one of the top IT fi rms in South-east Asia. He has more than four years of IT experience in consulting and solution architecture roles in SAP portfolios. He has been interested in SAP from the beginning of his career, and has been one of the pioneers in utilizing the SAP HANA technology since its inception. He has worked on implementation, design, and development, and also in go-live and production in various SAP projects in niche technologies such as BW, SAP HANA, and SAP BusinessObjects over his career. He is certified in SAP HANA and SAP BusinessObjects. Chandra is passionate about the SAP HANA technology and its evolution and roadmap, and is always learning new tools related to SAP HANA, Big Data, and in-memory technologies. Apart from work, he enjoys listening to music and playing video games and cricket. He can be reached at mankala.cs@gmail.com. Ganesh Mahadevan V. is an adept professional in Information Technology services with nearly eight years of extensive experience in software development, delivery, solution architecting, presales consulting, and business development. Ganesh has been the Strategic Lead for the SAP HANA technology in the South-east Asian market, and has acquired extensive expertise in collecting business requirements, conducting blueprinting workshops, customer know-how awareness, campaigns, and designing and developing applications using SAP BusinessObjects, SAP HANA, and the SAP real-time data platform. He has relentless passion and deep expertise in data warehousing, Business Intelligence, Analytics, Big Data, and in-memory technology, and has been a speaker at various tech forums. He has held senior positions in Analytics, IMDB, and PreSales; currently, he is a Solution Champion/Campaign Manager for the SEA ASEAN region for innovative technology-SAP HANA, SAP Real-Time Data Platform, and Analytics. He has been involved in sales campaigns and customer workshops for CXOs with various stake holders in the region (oCXO, Business Transformation Managers, and IT heads) on SAP HANA, including real-time data platforms (Hadoop, Web Crawler, SAP HANA, Sybase IQ, SAP Data Services, and SAP BOBJ Metadata Management). He is a testing partner in various SAP products such as Lumira, Predictive Analytics, and Mobile Apps. He was involved in building solutions to GTM and played a major role in building various IS solutions.

HANA是一个软硬件结合体，提供高性能的数据查询功能，用户可以直接对大量实时业务数据进行查询和分析，而不需要对业务数据进行建模、聚合等。SAP内存数据库的数据并不是只在内存里，也会不停写到硬盘里，这就用到复制服务器Replication Server，包括Log-based，Trigger-based和ETL-based。这些复制服务器需要用到Sybase Replication Server、Sybase Replication Server Agent、Sybase Adaptive Server EntERPrise (AES，适用性服务器)等，以及HANA Load Controller和BO Data Services。
HANA能做什么    HANA不是一个建模工具直接访问ECC或其它数据源，避开BW。但也可以在HANA之上建BW，把BW那些性能问题交给HANA解决。
SAP HANA提供多用途的内存应用设备，企业可以利用它即时掌握业务运营情况，从而对所有可用的数据进行分析，并对快速变化的业务环境做出迅速响应。
通过SAP HANA，企业可以在业务运作期间基于海量实时详细信息分析业务运营情况。企业可以探索和分析来源于所有数据源的全部交易数据和分析数据。运营数据在产生时由内存获取，并通过灵活的视图迅速将分析信息呈现给用户。建模流程支持提供明细行项目的直接访问模型，以及支持更为复杂的分析流程的分析模型。
SAP HANA 提供从概念到分析的高效工作流程。该工作流涵盖整个流程，从识别相关运营数据（将原始数据转化为相关信息）开始，到在模型中生成按语义分组的信息，最后是发布完成的模型。SAP HANA 与传统分析模型的主要区别在于摒弃了任何物质化的东西，即，所有模型都是完全虚拟的，均基于基本的具体运营数据计算结果。这样，模型就能够被方便的修改。
SAP HANA 可以访问任何数据。当企业需要非SAP 应用程序中的运营数据，或想在现有分析模型的基础上进行扩展时，任何数据源均可作为SAP HANA 的数据基础。使用SAP BusinessObjects 数据服务组件，可以将非SAP 运营数据加载到SAP HANA 内存中，这样，企业就可以通过极其精简的流程创建一个特定业务情景的完整视图。
SAP HANA 添加了易用的建模经验来进一步提高业务用户的自主性。视图遵循语义规则，将原始运营数据转化成可以理解的信息，据此，业务用户可以在基于Web的建模环境中自主地创建新分析模型。
SAP HANA 不会因为连接到现有数据源而打乱现有系统架构，并轻松利用现有BI客户端。作为一款完备的实时分析解决方案，SAP HANA 可以帮助企业尽快获得收益。