Oracle7 Server SQL Reference
CHAPTER 1. Introduction
Structured Query Language (SQL), pronounced "sequel," is the set of commands that all programs and users must use to access data within the Oracle7 database. Application programs and Oracle7 tools often allow users to access the database without directly using SQL, but these applications in turn must use SQL when executing the user's request. This chapter provides background information on SQL used by most relational database systems. Topics include: