PL/SQL User's Guide and Reference
Preface
PL/SQL is Oracle Corporation's procedural language extension
to SQL, the standard data access language for relational databases. PL/SQL offers modern software engineering features such as data encapsulation, information hiding, overloading, and exception handling, and so brings state-of-the-art programming to the Oracle Server and Toolset.
Designed to meet the practical needs of software developers, this guide explains all the concepts behind PL/SQL and illustrates every facet of the language. Good programming style is stressed throughout and supported by numerous examples. Here is all the information you need to understand PL/SQL and use it effectively to solve your information management problems.