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Managed Query Processing within the SAP HANA Database Platform

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Abstract

The SAP HANA database extends the scope of traditional database engines as it supports data models beyond regular tables, e.g. text, graphs or hierarchies. Moreover, SAP HANA also provides developers with a more fine-grained control to define their database application logic, e.g. exposing specific operators which are difficult to express in SQL. Finally, the SAP HANA database implements efficient communication to dedicated client applications using more effective communication mechanisms than available with standard interfaces like JDBC or ODBC. These features of the HANA database are complemented by the extended scripting engine–an application server for server-side JavaScript applications–that is tightly integrated into the query processing and application lifecycle management. As a result, the HANA platform offers more concise models and code for working with the HANA platform and provides superior runtime performance.

This paper describes how these specific capabilities of the HANA platform can be consumed and gives a holistic overview of the HANA platform starting from query modeling, to the deployment, and efficient execution. As a distinctive feature, the HANA platform integrates most steps of the application lifecycle, and thus makes sure that all relevant artifacts stay consistent whenever they are modified. The HANA platform also covers transport facilities to deploy and undeploy applications in a complex system landscape.

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Notes

  1. https://cloud.google.com/developers/.

  2. https://azure.microsoft.com.

  3. https://developer.salesforce.com/.

  4. https://apex.oracle.com/.

  5. https://hcp.sap.com/

  6. \text{The application is part of the standard HANA delivery. See} http://help.sap.com/hana/SAP_HANA_Interactive_Education_SHINE_en.pdf for the setup procedure.

  7. The most important special case in ERP systems is the currency conversions, i.e. interpreting decimal values as Euro and converting them given a specific date to US dollars. Interestingly in the context of a business application, this is not only a semantically complex operation, but it is also very performance critical.

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Authors and Affiliations

  1. SAP SE, Walldorf, Germany & Technische Universität Dresden, Dresden, Germany

    Norman May, Alexander Böhm, Meinolf Block & Wolfgang Lehner

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  1. Norman May
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  2. Alexander Böhm
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  3. Meinolf Block
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  4. Wolfgang Lehner
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Correspondence to Norman May.

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May, N., Böhm, A., Block, M. et al. Managed Query Processing within the SAP HANA Database Platform. Datenbank Spektrum 15, 141–152 (2015). https://doi.org/10.1007/s13222-015-0185-2

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  • DOI: https://doi.org/10.1007/s13222-015-0185-2

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