You can make use of the following tools for working with the database:
· The Database Manager for all-round administration of database instances
· The Database Analyzer for the analysis of database performance
· The Database Console for a quick overview of operating system resources and database sessions
· The Loader for loading and unloading data
· The Query Tools for executing SQL statements
· The WebDAV GUI for indexing XML documents in the database instance
If you want to work with Web-based tools, then use the Web Tools.
The X Server is used as the communication instance between applications and database instances.