PL/SQL (pronounced P-L-S-Q-L or P-L-see-quel) is a programming language
that was created by Oracle as a procedural language fully integrated
with SQL, to be used in working with Oracle databases. Anyone contemplating
working in the Oracle environment needs to know PL/SQL.
The Oracle has spoken—you need to get up to speed on PL/SQL programming, right? We predict it'll be a breeze with this book! You'll find out about code structures, best practices, and code naming standards, how to use conditions and loops, where to place PL/SQL code in system projects, ways to manipulate data, and more.
A database consists of tables and columns, as we describe in the preceding
section. There are some other terms you need to know in order to understand
how databases work. A database is built in two stages. First you create
a logical data model to lay out the design of the database and how the data will be organized.