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Applicant:
Indian Institute of Technology (IIT) Patna 
Author:
Jana, A., Halder, R., Abhishekh, K.V., Ganni, S.D., Cortesi, A. ,  
Corresponding Authors:
Jana, A 
DOI #:
https://doi.org/10.1109/TSE.2018.2861707 
Title:
Extending Abstract Interpretation to Dependency Analysis of Database Applications ,  
Journal:
IEEE Transactions on Software Engineering  
Year:
2020 
Volume:
46( 5 ) 
Page:
463 - 494 
Keywords:
Dependency Graphs, Static Analysis, Relational Databases, Structured Query Languages 
Abstract:
Dependency information (data- and/or control-dependencies) among program variables and program statements is playing crucial roles in a wide range of software-engineering activities, e.g. program slicing, information flow security analysis, debugging, code-optimization, code-reuse, code-understanding. Most existing dependency analyzers focus on mainstream languages and they do not support database applications embedding queries and data-manipulation commands. The first extension to the languages for relational database management systems, proposed by Willmor et al. in 2004, suffers from the lack of precision in the analysis primarily due to its syntax-based computation and flow insensitivity. Since then no significant contribution is found in this research direction. This paper extends the Abstract Interpretation framework for static dependency analysis of database applications, providing a semantics-based computation tunable with respect to precision. More specifically, we instantiate dependency computation by using various relational and non-relational abstract domains, yielding to a detailed comparative analysis with respect to precision and efficiency. Finally, we present a prototype semDDA, a semantics-based Database Dependency Analyzer integrated with various abstract domains, and we present experimental evaluation results to establish the effectiveness of our approach. We show an improvement of the precision on an average of 6% in the interval, 11% in the octagon, 21% in the polyhedra and 7% in the powerset of intervals abstract domains, as compared to their syntax-based counterpart, for the chosen set of Java Server Page (JSP)-based open-source database-driven web applications as part of the GotoCode project. 
Entered by:
Venkata Dantham on 2020-08-04 
 
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