jeremy.singer (8/30/2011)
Database linking can be done between schemas in a single database or to schemas in another database.
Not correct.
DBLinks connect one Oracle instance to another Oracle instance - DBLinks have no use in between schemas of a single instance, fully qualifying the object names allows you to access objects on different schemas of the same instance.
_____________________________________
Pablo (Paul) Berzukov
Author of Understanding Database Administration available at Amazon and other bookstores.
Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.