Book Image

SAP HANA Cookbook

Book Image

SAP HANA Cookbook

Overview of this book

SAP HANA is a real-time applications platform that provides a multi-purpose, in-memory appliance. Decision makers in the organization can gain instant insight into business operations. Thus all the data available can be analysed and you can react to the changing business conditions rapidly to make decisions. The real-time platform not only empowers business users and top management to make decisions but also provides the capability to make decisions in real-time.A practical and comprehensive guide that helps you understand the power of SAP HANA’s real-time and in-memory capabilities. It also provides step-by-step instructions to exploit all the possible features of the SAP HANA database, enabling users to harness the full potential of this technology and its features.You will gain an understanding of real-time replications, effective data loading from various sources, how to load data, and how to create re-usable objects such as models and reports.Use this practical guide to enable or transform your business landscape by implementing SAP HANA to meet your business requirements. The book shows you how to load data from different types of systems, create models in SAP HANA, and consume data for decision-making. The book covers various tools at different stages creating models using SAP HANA Studio, and consuming data using reporting tools such as SAP BusinessObjects, SAP Lumira, and so on . This book also explains the in-depth architecture of SAP HANA to help you understand SAP HANA as an appliance, that is, a combination of hardware and software.The book covers the best practices to leverage SAP HANA’s in-memory technology to transform data into insightful information. It also covers technology landscaping, solution architecture, connectivity, data loading, and setting up the environment for modeling purpose (including setup of SAP HANA Studio).If you have an intention to start your career as SAP HANA Modeler, this book is the perfect start.  
Table of Contents (16 chapters)
SAP HANA Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Creating calculation views


Calculation views are more advanced models in SAP HANA that are defined when requirements cannot be met with attribute and analytic views. For example, with calculation views, we can extract the required measures from more than one transaction table in the result, which is not possible with an analytic view. As well as this feature, we can define calculations at different layers and also use advanced SQL logic in calculation views. We can create joins, projections, unions, and aggregations in calculation views. This recipe explains how to create different types of calculation views.

Getting ready

Calculation views can be created in two ways:

  • Using GUI (Graphical User Interface)

  • Using SQLScript (native SQL or CE functions)

Any combination of the following objects can be a part of the calculation view data foundation:

  • Tables

  • Column views

  • Attribute views

  • Analytic views

  • Calculation views

We can create the following objects while defining a calculation view:

  • Attributes

  • Measures

  • Hierarchies...