The Oracle SQL Developer tool can connect to databases ... Developers can browse and execute basic SELECT queries on supported databases. However, write access is not supported for DB2.

Domain name registrar Network Solutions of Herndon, Va., has been using SQL Developer since March and has already adopted release 1.1. The vendor’s entire 40-strong database development team has ...

Hopefully, you can resolve the issue using the solutions mentioned in this post. Once you have installed Oracle SQL Developer, you only need to double-click on the application to open it.