Guntupalli, B. 2025. From SQL to Spark: My Journey into Big Data and Scalable Systems How I Debug Complex Issues in Large Codebases. International Journal of Artificial Intelligence, Data Science, and Machine Learning. 6, 1 (Feb. 2025), 174–185. DOI:https://doi.org/10.63282/3050-9262.IJAIDSML-V6I1P119.