Is there a way using TOAD to search for and discover all database instances. I found this feature in the TOAD for SQL Server but I cannot find it in TOAD for Oracle.
Toad for Oracle does not have the Database Discovery feature. It uses the Tnsnames.ora file to populate the database dropdown menu.
If you would like to see this as an enhancement to Toad for Oracle, please post your suggestion on the Toad Idea Pond.
The suggestion can be voted on by other Toad users and may be implemented in a future release of Toad (depending on its popularity and feasibility)