Conference
On the expressive power of XQuery fragments
| العنوان: | On the expressive power of XQuery fragments |
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| المؤلفون: | J. Hidders, J. Paredaens, R. Vercammen, S. Marrara |
| المساهمون: | G. Bierman, C. Koch, J. Hidder, S. Marrara, J. Paredaen, R. Vercammen |
| بيانات النشر: | Springer Berlin |
| سنة النشر: | 2005 |
| المجموعة: | The University of Milan: Archivio Istituzionale della Ricerca (AIR) |
| الوصف: | XQuery is known to be a powerful XML query language with many bells and whistles. For many common queries we do not need all the expressive power of XQuery. We investigate the effect of omitting certain features of XQuery on the expressive power of the language. We start from a simple base fragment which can be extended by several optional features being aggregation functions such as count and sum, sequence generation, node construction, position information in for loops, and recursion. In this way we obtain 64 different XQuery fragments which can be divided into 17 different equivalence classes such that two fragments can express the same functions iff they are in the same equivalence class. Moreover, we investigate the relationships between these equivalence classes. |
| نوع الوثيقة: | conference object |
| اللغة: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/isbn/9783540309512; ispartofseries:Lecture notes in computer science; 3774; ispartofbook:Database programming languages : 10. international workshop, DBPL 2005 : Trondheim, Norway, august 28-29, 2005 : revised selected papers; International Symposium on Database Programming Languages (DBPL); volume:3774; firstpage:154; lastpage:168; alleditors:G. Bierman, C. Koch; http://hdl.handle.net/2434/49373; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-33745383177 |
| DOI: | 10.1007/11601524_10 |
| الاتاحة: | http://hdl.handle.net/2434/49373 https://doi.org/10.1007/11601524_10 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.3B64D525 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1007/11601524_10 |
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