PL/SQL is Oracle Corporation's proprietary language for writing database event triggers and stored procedures. It is a procedural, interpreted, block-structured language based very loosely on Ada but having very tight integration with SQL. PL/SQL is also used in several of Oracle's client-side application development tools.
This area includes commercial and freeware tools that assist the developer in writing PL/SQL. These include editors and debuggers as well as complete interactive development environments (IDEs).