Rakipten Ortaklığa: İlişkisel Veri Tabanları ve Blok Zinciri Arasında Birlikte Çalışabilirliğin Sağlanması

Year 2025, Volume: 4 Issue: 2, 126 - 139, 30.11.2025

Osman Selvi , Adil Gürsel Karaçor , Yıldız Karadayı

Abstract

Blok zinciri birlikte çalışabilirliği, genellikle çapraz zincir protokolleri, bulut hizmetleri veya Nesnelerin İnterneti (IoT) entegrasyonu bağlamında ele alınmış, ancak merkezi sistemlerle olan etkileşimi görece daha az ilgi görmüştür. Çoğu çalışma, ilişkisel veritabanları ve blok zincirini birbirine rakip teknolojiler olarak değerlendirmekte, bu da pratikte önemli bir boşluk bırakmaktadır. Bu makalede, MySQL ve Hyperledger Fabric'i birbirine bağlayan, şeffaf ve sistematik bir çapraz platform veri birlikte çalışabilirliğini destekleyen DECEN adlı kavramsal bir model sunulmaktadır. DECEN, sistemler arasındaki kayıtları MD5 hash ile oluşturulan benzersiz bir tanımlayıcı kullanarak birbirine bağlar. Bu basit bağlantı, iki platform arasında bilginin eşlenmesine, senkronize edilmesine, doğrulanmasına ve çapraz kontrolden geçirilmesine olanak tanır. Dolayısıyla blok zinciri, bir yedek olarak değil, ilişkisel veritabanlarının yanında tamamlayıcı bir ortak olarak işlev görür. Tüm veri kümelerini taşımak veya çoğaltmak yerine, blok zinciri ek bir doğrulama kaynağı olarak hizmet verebilen destekleyici bir katman olarak ele alınmaktadır. Böylece, veritabanının yerini almadan güvenilirliği ve güveni artırmak mümkün olabilmektedir. Bu yaklaşımın pratikte nasıl işlediğini göstermek için yükseköğretimdeki uygulamalara odaklanılmakta ve bir vaka çalışması olarak üniversite transkriptleri incelenmektedir. Yöntemin teknik olarak uygulanabilir olduğunu göstermek için bir prototip geliştirilmiş ve test edilmiş olup, kaynak kodu tekrarlanabilirlik, doğrulama ve ileri araştırmaları teşvik etmek amacıyla açık kaynak olarak paylaşılmıştır.

Keywords

Blok Zinciri , Birlikte Çalışabilirlik , İlişkisel Veritabanı Yönetim Sistemleri , Yükseköğretim Kurumları , Veri Bütünleşmesi

Ethical Statement

Bu çalışma, araştırma ve yayın etiği kurallarına uygun olarak gerçekleştirilmiştir ve herhangi bir etik ihlal içermemektedir.

Supporting Institution

Bu çalışma herhangi bir kurum, kuruluş veya fon tarafından desteklenmemiştir.

From Rivals to Partners: Enabling Interoperability Between Relational Databases and Blockchain

Abstract

Blockchain interoperability has often been discussed in the context of cross-chain protocols, cloud services, or IoT integration, but much less attention has been paid to its interaction with centralized systems. Most studies treat relational databases and blockchains as competing technologies rather than complementary ones, leaving an important gap in practice. In this paper, we introduce DECEN, a conceptual model that connects MySQL and Hyperledger Fabric, supporting transparent and systematic cross-platform data interoperability. DECEN links records across systems by generating a unique identifier with an MD5 hash. This simple connection enables information to be mapped, synchronised, verified and cross-checked between the two platforms. Therefore, blockchain is not treated as a replacement but works alongside relational databases as a complementary partner. Rather than migrating or duplicating entire datasets, we treat the blockchain as a supporting layer that can serve as an extra source of verification. Such that, it can improve reliability and trust without replacing the database. To show how this works in practice, we look at applications in higher education and use university transcripts as a case study. A prototype was developed and tested to show that the approach is technically viable, and its source code has been openly shared to encourage repeatability, validation, and further research.

Keywords

Blockchain , interoperability , relational database management systems , higher education institutions , data integration

Ethical Statement

This study was conducted in accordance with research and publication ethics, and it does not involve any ethical misconduct.

Supporting Institution

This study received no financial or institutional support.

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