Extensions

Beyond The Ordinary Features

SQL Developer provides two types of extensions: Standard extensions supporting all databases and vendor specific extensions granting access to proprietary functions and features of a special database.

Standard Extensions

You can use the standard extensions with any database SQL Developer can connect to.
These extensions include support for:

Detailed database comparison reports
Dissolving relation dependencies

Oracle Extensions

On Oracle SQL Developer provides support for:

Query tuning (explaining the query execution plan)
Viewing and controlling of database jobs
Exploring Oracle Text (interMedia) indices, preferences and more
Access to the Oracel 10g recycle bin
Browsing the sessions running on your database
Monitoring the database's performance

Microsoft SQL Server

SQL Server users get support for:

Query tuning (explaining the query execution plan)
Browsing the processes running on your database
Monitoring the database's performance
Remote command shell access to the database server

MySQL Extensions

MySQL users can view and control the processes of the database.