Worked on the Baeldung/sql-tutorials repository to deliver a consolidated SQL indexing samples project, focusing on the differences between composite and multi-column indexes. Developed comprehensive SQL scripts for index creation, dummy data generation, and queries that demonstrate index usage by GPA and enrollment date, enabling realistic performance testing. Improved repository structure by reorganizing files and standardizing naming conventions to support future scalability. Applied minor fixes to code samples and ensured consistency across the sample suite. Utilized SQL and database management skills throughout the process, with an emphasis on SQL indexing and refactoring to lay the groundwork for future optimization analyses.