PL/SQL is Oracle's procedural language extension to SQL. PL/SQL enables you to mix SQL statements with procedural constructs.

With PL/SQL, you can define and execute PL/SQL program units such as Procedures, Functions and Packages.

PL/SQL program units gernerally categorized as Anonymus blocks and Stored Procedures.

PL/SQL is completely portable, hifh-performance transaction processing language that offers the following advantages -

• Support to SQL
• Higher productivity
  
• Better performance
  
• Portability
  
• Integration with Oracle