Introduction
Oracle is an extremely powerful and flexible relational database system. Along with this power and flexibility comes complexity, however. In order to design useful applications that are based on Oracle, it is necessary to understand how Oracle manipulates the data stored within the system. PL/SQL is an important tool that is designed for data manipulation, both internally within Oracle and externally in your own applications. PL/SQL is available in a variety of environments, each of which has different advantages.
The first PL/SQL book in this series was Oracle PL/SQL Programming, published in 1996. This first edition covered releases up to PL/SQL version 2.3 with Oracle7 Release 7.3—at the time the most recent version of the database ...
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