iSQL Plus User's Guide and Reference is intended for end users and system administrators who perform the following tasks:■ Enter, edit, run store, retrieve, and save SQL commands and PL/SQL blocks■ Calculate, store, and print query results.■ List column definitions for any table.■ Access and copy data between databases.■ Perform database administration.To use this document, you need a basic understanding of the SQL databaselanguage. If you do not have any familiarity with this database tool, you should refer to the Oracle 9i SQL Reference. If you plan to use the PL/SQL database language in conjunction with SQL Plus, refer to the PL/SQL User's Guide and Reference for information on using PL/SQL.