15일차 # 1-6: Benefies of PL/SQL

  * Integration of procedural constructs with SQL

  * Improved performance

  * Modularized program development - logical group of statements

                                    - nest blocks

                                    - smaller modules

                                    - easily maintain and debug

  * Integration with Oracle tools

- applications/tools (PL) + database (SQL)

  * Portability

  * Exception handling