Computer Science > Databases
[Submitted on 27 Mar 2024]
Title:Proving correctness for SQL implementations of OCL constraints
View PDFAbstract:In the context of the model-driven development of data-centric applications, OCL constraints play a major role in adding precision to the source models (e.g., data models and security models). Several code-generators have been proposed to bridge the gap between source models with OCL constraints and their corresponding database implementations. However, the database queries produced by these code-generators are significantly less efficient -- from the point of view of execution-time performance -- than the implementations manually written by database experts. In this paper, we propose a different approach to bridge the gap between models with OCL constraints and their corresponding database implementations. In particular, we introduce a model-based methodology for proving the correctness of manually written SQL implementations of OCL constraints. This methodology is based on a novel mapping from a significant subset of the SQL language into many-sorted first-order logic. Moreover, by leveraging on an already existing mapping from the OCL language into many-sorted first-order logic, we can use SMT solvers to automatically prove the correctness of SQL implementations of OCL constraints. To illustrate and show the applicability of our approach, we include in the paper a number of non-trivial examples. Finally, we report on the status of a suite of tools supporting our approach.
Submission history
From: Hoang Nguyen Phuoc-Bao [view email][v1] Wed, 27 Mar 2024 14:20:27 UTC (130 KB)
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