How do I create a public database link in Oracle?

To create a public database link, you must have the CREATE PUBLIC DATABASE LINK system privilege. Also, you must have the CREATE SESSION system privilege on the remote Oracle database. Oracle Net must be installed on both the local and remote Oracle databases.

How do I create a public view in Oracle?

The syntax for the CREATE VIEW Statement in Oracle/PLSQL is: CREATE VIEW view_name AS SELECT columns FROM tables [WHERE conditions]; view_name. The name of the Oracle VIEW that you wish to create.

What is public Dblink?

Database links can be public or private. A public database link is one that can be used by any user. A private database link can be used only by the database link’s owner. Specification of the PUBLIC option creates a public database link. If omitted, a private database link is created.

What is a DB link with example?

A database link is a pointer that defines a one-way communication path from an Oracle Database server to another database server. The link pointer is actually defined as an entry in a data dictionary table. To access the link, you must be connected to the local database that contains the data dictionary entry.

How do I use Dblink in SQL Developer?

To do this, simply append the database link name to the name of any table or view that is accessible to the remote account. When appending the database link name to a table or view name, you must precede the database link name with an @ sign.

How do I find the Dblink 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 do I create a public synonym in Oracle?

Oracle CREATE SYNONYM

  1. First, specify the name of the synonym and its schema.
  2. Second, specify the object for which you want to create the synonym after the FOR keyword.
  3. Third, use the OR REPLACE option if you want to re-create the synonym if it already exists.

How do you create views in SQL explain with an example?

A view contains rows and columns, just like a real table. The fields in a view are fields from one or more real tables in the database. You can add SQL statements and functions to a view and present the data as if the data were coming from one single table. A view is created with the CREATE VIEW statement.

How do I know if my DB link is public or private?

We can verify public database link using select * from dual@public_db_link; How private db links can be verified by a DBA if application schema’s password is not known.

How do I grant Dblink privilege to user?

You cannot grant a privilege on a db link to someone else. Private db links are owned by a user and only that user can use it. If you want other users to use the same link you need to create the same link under each schema.

How do I find my DB Link password?

If it is a db link that you created, you can see the password in plain text in the user_db_links view. If it is not one you created, you are out of luck, with out without dba privileges.

How do I create a synonym in Oracle with Dblink?

Use the CREATE SYNONYM statement to create a synonym, which is an alternative name for a table, view, sequence, procedure, stored function, package, materialized view, Java class schema object, user-defined object type, or another synonym.