Oracle Syntax

Other commands and options

Summary of Datatypes for Oracle 7 & 8

List of Oracle Functions

NLS Formats

PL/SQL commands

SQL*Plus commands

IMP and EXP parameter files

Rules of thumb for setting up an Oracle instance

Oracle Architecture Memory structures (Powerpoint format)

Variables - how to define Oracle variables 

Naming Convention for Oracle

For examples of all the above see my recommended Oracle books