During this period, contributed to the great-expectations/great_expectations repository by addressing a bug in Oracle SQL query generation. Focused on improving database management and Python development, the work involved refining SQLAlchemy integration to prevent the addition of unnecessary FROM DUAL clauses in properly formatted Oracle SQL queries. This update enhanced query correctness and reliability for Oracle users by reducing syntax errors and improving cross-database compatibility. The solution also included updating type hints for selectables and implementing logic to ensure queries execute cleanly without superfluous clauses, demonstrating attention to code quality and stability in SQL and Python-based data workflows.