• Tables- name, tablespace, comment, primary key
• Columns- name, data type, not null, default value, comment
• Indexes- index name, uniqueness, column names and position
• Foreign Keys-Lists foreign keys for current table
• Triggers- name and code
• Views- name and SQL definition
• Synonyms-name,table owner, name, db link
• Sequences-name, min and max value, increment by, cycle and order flag, cache size, and last number
• Packages- header and body names and code.
• Functions- name and code
• Procedures- name and code

A report parameter form at the beginning of the report allows you to limit your choices to the desired objects. Here is the RDF file, and here is sample output from the report.