A graphical query language supporting recursion
SIGMOD '87 Proceedings of the 1987 ACM SIGMOD international conference on Management of data
XML query forms (XQForms): declarative specification of XML query interfaces
Proceedings of the 10th international conference on World Wide Web
A Schema-Based Approach to Modeling and Querying WWW Data
FQAS '98 Proceedings of the Third International Conference on Flexible Query Answering Systems
PESTO: An Integrated Query/Browser for Object Databases
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
BBQ: A Visual Interface for Integrated Browsing and Querying of XML
VDB 5 Proceedings of the Fifth Working Conference on Visual Database Systems: Advances in Visual Information Management
VL '00 Proceedings of the 2000 IEEE International Symposium on Visual Languages (VL'00)
A Graphical Environment to Query XML Data with XQuery
WISE '03 Proceedings of the Fourth International Conference on Web Information Systems Engineering
Query-by-example: a data base language
IBM Systems Journal
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As the popularity of XML increases, the need for querying collections of XML data from various systems becomes imperative. Proposed by W3C, XQuery is becoming a standard for querying such systems. However, the complexity of XQuery prevents its usage by broad audience. This paper proposes a visual XQuery specification language called VXQ to address this issue. By intuitive abstractions of XML and XQuery, the proposed system can generate XQueries for users that have little knowledge about the language. We show that our visual language is more expressive than previous proposals. Finally, we extend our proposed visual XQuery to support query rewriting and optimization for multiple XQuery systems.