Sparql query processing in relational databases
نویسندگان
چکیده
منابع مشابه
Relational Databases Query Optimization using Hybrid Evolutionary Algorithm
Optimizing the database queries is one of hard research problems. Exhaustive search techniques like dynamic programming is suitable for queries with a few relations, but by increasing the number of relations in query, much use of memory and processing is needed, and the use of these methods is not suitable, so we have to use random and evolutionary methods. The use of evolutionary methods, beca...
متن کاملSPARQL Query Processing with Conventional Relational Database Systems
This paper describes an evolution of the 3store RDF storage system, extended to provide a SPARQL query interface and informed by lessons learned in the area of scalable RDF storage.
متن کاملIncremental SPARQL Query Processing
The number of linked data sources available on the Web is growing at a rapid rate. Moreover, users are showing an interest for any framework that allows them to obtain answers, for a formulated query, accessing heterogeneous data sources without the need of explicitly specifying the sources to answer the query. Our proposal focus on that interest and its goal is to build a system capable of ans...
متن کاملOverview of Top-k Query Processing in Relational Databases
Query processing is a fundamental part of Database management system. As the amount of text data stored in relational databases is increasing, it is necessary to support the Top-k query processing over text data. The main objective of top-k query processing is to return the k highest ranked results quickly and efficiently. In this paper, we introduce the Top-k query processing in relational dat...
متن کاملOntop: Answering SPARQL queries over relational databases
In this paper we present Ontop, an open-source Ontology Based Data Access (OBDA) system that allows for querying relational data sources through a conceptual representation of the domain of interest, provided in terms of an ontology, to which the data sources are mapped. Key features of Ontop are its solid theoretical foundations, a virtual approach to OBDA that avoids materializing triples and...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Engineering & Technology
سال: 2018
ISSN: 2227-524X
DOI: 10.14419/ijet.v7i2.33.13860