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How can I see all database links in Oracle?
Any user can query USER_DB_LINKS to determine which database links are available to that user. Only those with additional privileges can use the ALL_DB_LINKS or DBA_DB_LINKS view.
How can I see all DBA users in Oracle?
For example, a DBA wishing to view all system privileges granted to all users would issue the following query: SELECT * FROM DBA_SYS_PRIVS; The DBA_SYS_PRIVS view contains three columns of data: GRANTEE is the name, role, or user that was assigned the privilege.
How do I check if a user has Sysdba?
SQL> select * from dba_role_privs where granted_role=’DBA’; The v$pwfile_users view contains a list of all users who have been granted the SYSDBA or SYSOPER privilege.
How to list all DB links in Oracle?
These views are helpful for working with DB links in Oracle: 1 DBA_DB_LINKS – All DB links defined in the database 2 ALL_DB_LINKS – All DB links the current user has access to 3 USER_DB_LINKS – All DB links owned by current user More
What does all DB links mean in SQL?
ALL_DB_LINKS describes the database links accessible to the current user. DBA_DB_LINKS describes all database links in the database. USER_DB_LINKS describes the database links owned by the current user. This view does not display the OWNER column. Indicates whether the database link is used to support operations across sharded databases.
How to find the links in a database?
The data dictionary of each database stores the definitions of all the database links in the database. You can use data dictionary tables and views to gain information about the links. This section contains the following topics: Determining Which Links Are in the Database Determining Which Link Connections Are Open
How to see List of databases in Oracle?
Otherwise, the tools commonly used connect to one database instance, and an instance belongs to a single database. If you’re talking about Oracle RAC clusters, then each instance knows of its peers (other instances that service the same database) and you can find the other instances currently started for that database using the gv$instance view.