... 165Working with Indexes 172 Working with Views 174 Working with Sequences 175 Summary 176 Exam Essentials 176 Review Questions 178 Answers to Review Questions 182 Chapter 4 Oracle Net Services ... xii Friday, October 15, 2004 9:53 PM xviii Introduction Oracle Certifications Oracle certifications follow a track that is oriented toward a job role. There are database admin-istration, ... application developer, and web application server administrator tracks. Within each track, Oracle has a multitiered certification program.Within the administration track, there are three tiers:...