I am a software engineer with nearly 30 years of experience in software development, passionate about solving various challenges in software development and operations. Over the past decade, I've independently researched Oracle database's internal storage structures, becoming proficient in data file block formats, ASM internal principles and architecture, as well as conducting in-depth studies on redo log structures and their change vector formats.

These research achievements led me to develop several Oracle database tools, including a DUL-like data unloading tool, an ASM data viewer, and a data replication software similar to Oracle GoldenGate. The development process presented numerous challenges that drove me to investigate specific problems more deeply, resulting in fresh insights into Oracle's storage architecture.

I will gradually publish these research findings in the form of e-books and software source code here. If you're interested in this field, please follow my work.