DOI Number :
Hits : 8

PQL: Operasi Komposisi dan Jaringan Semantik Data

Benhard Sitohang,

Data & Software Engineering Research Group
STEI-ITB, Jl. Ganeca No.10, Bandung 40132, Indonesia


Abstract.

Public Query Language (PQL) is the syntax of query for relational database, which is categorized as  highly user friendly compared to the 4-th generation language (SQL, QBE, QUEL,etc.). As a query language, PQL is constructed as  linear syntax(without block recursive). Visualization of the result is constructed as an entity (not tupple, as happened in SQL). As a consequence, duplication of data on the results could be rejected. Query process and the principle of visualization of result of PQL can be adapted as part of DBMS, using composition method  (Composition Operator), developed as an interpretation of join operator and navigation, supported by Data Semantic Network. Both Composition Operator and Data Semantic Network are main topic discussed  in this article, as the result of this research on PQL.



Keywords: database, functional dependency, navigation, Public Query language (PQL), query language, relational model, relational Operator

Download Article
 
Bahasa Indonesia | English
 
 
 
   Email
   Password
   Login as
Forget Password | Registration
 
       
       
       ITB Journal Visitor Number #3512583       
       Jl. Tamansari 64, Bandung 40116, Indonesia Visitor IP Address #54.87.44.72       
       Tel : +62-22-250 1759 ext. 121 2011 Institut Teknologi Bandung       
       Fax : +62-22-250 4010, +62-22-251 1215 XHTML + CSS + RSS       
       E-mail : journal@lppm.itb.ac.id or proceedings@lppm.itb.ac.id Developed by AVE