This is a solution that automatically converts Oracle SQL to fit the open source DB when converting an ORACLE DB to an open source DB, checks for execution errors in the converted SQL, and automatically executes all converted SQL to quickly verify the difference in AS-IS/TO-BE execution results (values, number of cases) and performance.

This provides an easy way to check verification results for each SQL, and if necessary, provides a function to receive guidance on the optimal index through full SQL analysis.