The Manage Data menu option enables you to manage data stored in an Oracle Names server. Oracle Names servers can be configured to store the following types of information:
Select to query, add, or remove net service names, as well as load entries from a tnsnames.ora file.
Select to query, add, or remove aliases for other network objects.
Select to query, add, or remove global database links.
Select to delegate domains.
Select to query, add, or remove network objects stored in an Oracle Names server.