oracle pl/sql based tools for design development and maintenance
A suite of open source utilities written in Oracle PL/SQL for schema instrumentation, auditing, schema administration scripting, ddl mapping and migration code generation, dml package generation, and xml service package generation based on metadata tables
...It is a collection of PL/SQL packages and related tables, which provide a starter framework for custom PL/SQL-based applications. Save months of design/build time. Includes logging, debugging, timing, locks, common messages, file reading/writing/management, email from within the DB, user/role security, and more.