2014 ◽  
Vol 602-605 ◽  
pp. 1165-1168
Author(s):  
Dao Ju Duan ◽  
Lei Qiu ◽  
Zhong Tao Zhu ◽  
Da Peng Wang ◽  
Rong Yue Xie

The process and design scheme of IETM system based on GJB6600 standard was introduced in this paper, and automatic control equipment maintenance was studied with IETM data description and storage technology,the data description scheme, data storage and query framework were established, realized the conversion from XML data to relational database, and the small IETM browsing prototype was developed. This project had important significance to shorten the maintenance time and improve the efficiency of equipment protection.


2017 ◽  
Vol 8 (2) ◽  
Author(s):  
Pradana Setialana ◽  
Teguh Bharata Adji ◽  
Igi Ardiyanto

Abstract. Directed Acyclic Graph (DAG) is a directed graph which is not cyclic and is usually employed in social network and data genealogy. Based on the characteristic of DAG data, a suitable database type should be evaluated and then chosen as a platform. A performance comparison among relational database (PostgreSQL), document-oriented database (MongoDB), and graph database (Neo4j) on a DAG dataset are then conducted to get the appropriate database type. The performance test is done on Node.js running on Windows 10 and uses the dataset that has 3910 nodes in single write synchronous (SWS) and single read (SR). The access performance of PostgreSQL is 0.64ms on SWS and 0.32ms on SR, MongoDB is 0.64ms on SWS and 4.59ms on SR, and Neo4j is 9.92ms on SWS and 8.92ms on SR. Hence, relational database (PostgreSQL) has better performance in the operation of SWS and SR than document-oriented database (MongoDB) and graph database (Neo4j).Keywords: database performance, directed acyclic graph, relational database, document-oriented database, graph database Abstrak. Directed Acyclic Graph (DAG) adalah graf berarah tanpa putaran yang dapat ditemui pada data jejaring sosial dan silsilah keluarga. Setiap jenis database memiliki performa yang berbeda sesuai dengan struktur data yang ditangani. Oleh karena itu perlu diketahui database yang tepat khususnya untuk data DAG. Tujuan penelitian ini adalah membandingkan performa dari relational database (PostgreSQL), document-oriented database (MongoDB) dan graph database (Neo4j) pada data DAG. Metode yang dilakukan adalah mengimplentasi dataset yang memiliki 3910 node dalam operasi single write synchronous (SWS) dan single read (SR) pada setiap database menggunakan Node.js dalam Windows 10. Hasil pengujian performa PostgreSQL dalam operasi SWS sebesar 0.64ms dan SR sebesar 0.32ms, performa MongoDB pada SWS sebesar 0.64ms dan SR sebesar 4.59ms sedangkan performa Neo4j pada operasi SWS sebesar 9.92ms dan SR sebesar 8.92ms. Hasil penelitian menunjukan bahwa relational database (PostgreSQL) memiliki performa terbaik dalam operasi SWS dan SR dibandingkan document-oriented database (MongoDB) dan graph database (Neo4j).Kata Kunci: performa database, directed acyclic graph, relational database, document-oriented database, graph database


2015 ◽  
Vol 2 (1) ◽  
pp. 1-14 ◽  
Author(s):  
João Ricardo Lourenço ◽  
◽  
Bruno Cabral ◽  
Jorge Bernardino ◽  
Marco Vieira ◽  
...  

1996 ◽  
Vol 8 (3) ◽  
pp. 160-168 ◽  
Author(s):  
Janet Burt ◽  
Tom Beaumont James

This article discusses the different approaches to the treatment of historical databases: the relational database system and κλειω, a source-oriented approach.


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