Wolfgang Lehner

Technische Universität Dresden
0000-0001-8107-2775
https://wwwdb.inf.tu-dresden.de/our-group/team/wolfgang-lehner/
Publications579
h-index37
Citations6,337
Highly Influential Citations366
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  • Publications
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The SAP HANA Database -- An Architecture Overview
TLDR
In this paper we highlight the architectural concepts employed in the SAP HANA database. Expand
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SAP HANA database: data management for modern business applications
TLDR
SAP HANA database is positioned as the core of the SAP HANA Appliance to support complex business analytical processes in combination with transactionally consistent operational workloads. Expand
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FPTree: A Hybrid SCM-DRAM Persistent and Concurrent B-Tree for Storage Class Memory
TLDR
We propose a novel hybrid SCM-DRAM persistent and concurrent B-Tree, named Fingerprinting Persistent Tree (FPTree) that achieves similar performance to DRAM-based counterparts. Expand
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Efficient transaction processing in SAP HANA database: the end of a column store myth
TLDR
The SAP HANA database is the core of SAP's new data management platform. Expand
  • 156
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  • PDF
Normal forms for multidimensional databases
TLDR
In the area of online analytical processing (OLAP), the concept of multidimensional databases is receiving much popularity. Expand
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Modelling Large Scale OLAP Scenarios
TLDR
We extend the classical multidimensional model by grouping functionally dependent attributes within single dimensions, yielding in real orthogonal dimensions, which are easy to create and maintain on schema design level. Expand
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Building the Dresden Web Table Corpus: A Classification Approach
TLDR
In recent years, researchers have recognized relational tables on the Web as an important source of information. Expand
  • 39
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Representing Data Quality in Sensor Data Streaming Environments
TLDR
We address this problem by presenting a flexible model for the propagation and processing of data quality. Expand
  • 101
  • 6
Cache-Efficient Aggregation: Hashing Is Sorting
TLDR
In this paper we argue that in terms of cache efficiency, the two paradigms are actually the same. Expand
  • 46
  • 6
  • PDF
Efficient exploitation of similar subexpressions for query processing
TLDR
We present an efficient, scalable, and principled solution to this long-standing optimization problem. Expand
  • 97
  • 5
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