This download does not include the JDK. You can connect to and use any JDK 1.6.0_11 or above.
To install and run:
- Ensure you have a JDK installed, if not, download here
(click the Download for JDK 6 Update , where is the latest update)
- Download the file above
- Extract sqldeveloper.zip into any folder, using folder names
- Within that folder, open the sqldeveloper folder
- Double-click sqldeveloper.exe