I am currently working on my DBA Certification. I going to take the SQL PL/SQL exam hopefully by the end of the month. After this exam is there any particular order that they have to be taken in? Oracle lists the exams in the following order on their site:

Exam 1Z0-001: Introduction to Oracle: SQL and PL/SQL

Exam 1Z0-013: Oracle8 Database Administration

Exam 1Z0-015 : Oracle8 Backup and Recovery

Exam 1Z0-014: Oracle8 Performance Tuning

Exam 1Z0-016: Oracle8: Network Administration