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A Literature Review on Schema Evolution in Databases

open access: diamondComputing Open
Changing a database schema is a fact of life in information systems, as a response to changes inside the enterprise (e.g., new users’ requirements, correction of errors in the current database schema) or outside it (e.g., new regulations, new partners ...
Zouhaier Brahmia   +2 more
doaj   +2 more sources

NASA Electronic Library System (NELS) database schema, version 1.2 [PDF]

open access: green, 1991
The database tables used by NELS version 1.2 are discussed. To provide the current functional capability offered by NELS, nineteen tables were created with ORACLE.
Clovis J. Melebeck
openalex   +2 more sources

TOPYDE: A Tool for Physical Database Design [PDF]

open access: yes, 1995
We describe a tool for physical database design based on a combination of theoretical and pragmatic approaches. The tool takes as input a relational schema, the workload defined on the schema, and some additional database characteristics and produces as ...
Blanken, H.M.   +3 more
core   +14 more sources

NL2SQL Model Based on Self-Pruning Heterogeneous Graph [PDF]

open access: yesJisuanji gongcheng, 2022
Natural Language to Structured Query Language(NL2SQL) is a critical task in semantic parsing.The goal of NL2SQL lies in the joint learning of natural language query and database schema.Existing approaches construct a heterogeneous graph to jointly encode
HUANG Junyang, WANG Zhenyu, LIANG Jiaqing, XIAO Yanghua
doaj   +1 more source

Assessing the Business Needs and Readiness of Palestinian Municipalities to Adapt GIS to Promote Public Services [PDF]

open access: yesمجلة جامعة النجاح للأبحاث العلوم الطبيعية, 2016
This paper uses a case study approach to explore the extent to which the municipalities in Palestinian cities are ready to adopt GIS in their business procedures to improve service delivery and planning activities. For this purpose the business needs and
Sana Qasim   +5 more
doaj   +1 more source

3D GEOSPATIAL DATABASE SCHEMA FOR ISTANBUL 3D CITY MODEL [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
This paper describes the development of 3D database for Istanbul 3D city models. The schema is based on object-relational technology and also called spatially-enhanced relational database management system (SRDBMS).
A. Abdul Rahman   +5 more
doaj   +1 more source

Uncertainty Modeling of Object-Oriented Biomedical Information in HBase

open access: yesIEEE Access, 2020
While object-oriented databases (OODBs) are known to be rich in functionality, HBase database, which is a distributed and scalable big data store, as well as uncertain databases have recently gained a lot of attention in the database community.
Lei Zhang   +4 more
doaj   +1 more source

Functional querying in graph databases

open access: yesVietnam Journal of Computer Science, 2017
The paper is focused on a functional querying in graph databases. We consider labelled property graph model and mention also the graph model behind XML databases. An attention is devoted to functional modelling of graph databases both at a conceptual and
Jaroslav Pokorný
doaj   +1 more source

PERANGKAT LUNAK ANTAR MUKA GRAFIS SCHEMA DAN CUBE EDITOR MS ANALYSIS SERVICE BERBASIS WEB

open access: yesJUTI: Jurnal Ilmiah Teknologi Informasi, 2007
Aplikasi Web telah menjadi bagian yang tidak terpisahkan lagi dalam kehidupan sehari-hari. Seiring dengan meningkatnya teknologi internet membuat seorang administrator tidak perlu berada didepan komputer server untuk dapat melakukan pekerjaan ...
Faizal Johan   +2 more
doaj   +1 more source

Schema Integration of Web Tables (SIWeT)

open access: yesSukkur IBA Journal of Computing and Mathematical Sciences, 2017
Schema integration has been mainly applied in database environment whether schemas to be integrated belonged to a single organization or multiple ones. Schema extraction is a relatively new area where schema is extracted from a web table.
Nayyer Masood   +2 more
doaj   +1 more source

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