Comparison of two XML query languages from the perspective of learners
| Autor: | Jaana Kekäläinen, Marko Junkkari, Matti Lassila |
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| Přispěvatelé: | Informaatiotieteiden yksikkö - School of Information Sciences, University of Tampere |
| Rok vydání: | 2015 |
| Předmět: |
oppiminen
pedagogical issues Computer science kyselykielten opetus Library and Information Sciences computer.software_genre Query optimization Query language Query expansion Web query classification Tietojenkäsittely ja informaatiotieteet - Computer and information sciences computer.programming_language query languages Web search query Programming language business.industry InformationSystems_DATABASEMANAGEMENT opetus XML-kyselykielet teaching/learning strategies Object Query Language XML query languages Sargable Artificial intelligence business computer Natural language processing Information Systems RDF query language |
| Zdroj: | Journal of Information Science. 41:584-595 |
| ISSN: | 1741-6485 0165-5515 |
| DOI: | 10.1177/0165551515585259 |
| Popis: | Two XML query languages were tested for intuitivity, learnability and memorability. The languages differ with relation to the query structures like the use of variables, iterators and reference to attributes. One of the languages, XQuery, is a procedural, expressive and data-oriented query language that is suitable even for programming purposes; the other, XIL, is more declarative, document-oriented query language with a simpler syntax. A query-writing test with the learners of the languages was executed. The study indicates that, in the query writing, the more procedural query language yields a greater number of correct queries. Similarity between the tested languages, and to SQL, is discussed from the point of view of learnability. |
| Databáze: | OpenAIRE |
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