This book is for Oracle developers, database administrators, and
anyone who needs access to data stored in an Oracle database for
reporting or ad-hoc analysis. Whether you are new to the world of
databases or a seasoned professional, if you use SQL to access an
Oracle database, this book is for you. Whether you use simple queries
to access data or embed them in PL/SQL or Java programs, SQL is the
core of all data access tasks in your application. Knowing the power
and flexibility of SQL will improve your productivity, allowing you
to get more done in less time, and with increased certainty that the
SQL statements you write are indeed correct.