A Selective Key-Oriented XML Index for the Index Selection Problem in XDBMS. - Beda Christoph Hammerschmidt; Martin Kempa; Volker Linnemann (DEXA, 2004)

KeyX: ein selektiver schlüsselorientierter Index für das Index Selection Problem in XDBMS. - Beda Christoph Hammerschmidt (Grundlagen von Datenbanken, 2004)

Migrating stateful web services using Apache Axis and P2P. - Beda Christoph Hammerschmidt; Volker Linnemann (IADIS AC, 2005)

Autonomous Index Optimization in XML Databases. - Beda Christoph Hammerschmidt; Martin Kempa; Volker Linnemann (ICDE Workshops, 2005)

The Index Update Problem for XML Data in XDBMS. - Beda Christoph Hammerschmidt; Martin Kempa; Volker Linnemann (ICEIS (1), 2005)

On the Intersection of XPath Expressions. - Beda Christoph Hammerschmidt; Martin Kempa; Volker Linnemann (IDEAS, 2005)

KeyX: selective key-oriented indexing in native XML-databases. - Beda Christoph Hammerschmidt (IOS Press, 2005)

Integrating Statically Typechecked XML Data Technologies into Pure Java. - Henrike Schuhart; Beda Christoph Hammerschmidt; Volker Linnemann (SEDE, 2006)

Incremental Validation of String-Based XML Data in Databases, File Systems, and Streams. - Beda Christoph Hammerschmidt; Christian Werner; Ylva Brandt; Volker Linnemann; Sven Groppe; Stefan Fischer 001 (ADBIS, 2007)

JSON data management: supporting schema-less development in RDBMS. - Zhen Hua Liu; Beda Christoph Hammerschmidt; Douglas Mcmahon (SIGMOD Conference, 2014)

Closing the functional and Performance Gap between SQL and NoSQL. - Zhen Hua Liu; Beda Christoph Hammerschmidt; Douglas Mcmahon; Ying Liu; Hui Joe Chang (SIGMOD Conference, 2016)

Adaptive Schema Databases. - William Spoth; Bahareh Sadat Arab; Eric S. Chan; Dieter Gawlick; Adel Ghoneimy; Boris Glavic; Beda Christoph Hammerschmidt; Oliver Kennedy; Seokki Lee; Zhen Hua Liu; Xing Niu 002; Ying Yang 005 (CIDR, 2017)

SchemaDrill: Interactive Semi-Structured Schema Design. - William Spoth; Ting Xie; Oliver Kennedy; Ying Yang 005; Beda Christoph Hammerschmidt; Zhen Hua Liu; Dieter Gawlick (HILDA@SIGMOD, 2018)

The New and Improved SQL: 2016 Standard. - Jan-Eike Michels; Keith W. Hare; Krishna G. Kulkarni; Calisto Zuzarte; Zhen Hua Liu; Beda Christoph Hammerschmidt; Fred Zemke (SIGMOD Rec., 2018)

Native JSON Datatype Support: Maturing SQL and NoSQL convergence in Oracle Database. - Zhen Hua Liu; Beda Christoph Hammerschmidt; Douglas Mcmahon; Hui J. Chang; Ying Lu; Joshua Spiegel; Alfonso Colunga Sosa; Srikrishnan Suresh; Geeta Arora; Vikas Arora (Proc. VLDB Endow., 2020)

Reducing Ambiguity in Json Schema Discovery. - William Spoth; Oliver Kennedy; Ying Lu; Beda Christoph Hammerschmidt; Zhen Hua Liu (SIGMOD Conference, 2021)

JSON Relational Duality: A Revolutionary Combination of Document, Object, and Relational Models. - Shashank Gugnani; Zhen Hua Liu; Hui J. Chang; Beda Christoph Hammerschmidt; Srinivas Kareenhalli; Kishy Kumar; Tirthankar Lahiri; Ying Lu; Douglas McMahon; Ajit Mylavarapu; Sukhada Pendse; Ananth Raghavan (SIGMOD Conference Companion, 2025)