How do I drop a database link in Oracle?

Use the DROP DATABASE LINK statement to remove a database link from the database. A private database link must be in your own schema. To drop a PUBLIC database link, you must have the DROP PUBLIC DATABASE LINK system privilege.

How do I drop a database in Oracle 11gr2?

Steps To Drop Oracle Database Manually

Step 1 : Connect to the database with sysdba privilege. $ export ORACLE_SID=mydb $ sqlplus “/ as sysdba”
Step 2 : Shutdown the database. SQL> shutdown immediate;
Step 3: Start the Database in Exclusive mode.
Step 4: Drop the database.
Step 5 : Post Change Steps.

How do I drop a database link in another schema?

You cannot drop a database link in another user’s schema, and you cannot qualify dblink with the name of a schema, because periods are permitted in names of database links. Therefore, Oracle Database interprets the entire name, such as ralph.

Can we disable DB link in Oracle?

But if you’re still in 11g you want to be able to disable all database links before the open. That can be done in the instance, steeing the open_links parameter to zero in your spfile. Let’s see an example: SQL> alter system set open_links=0 scope=spfile; System altered.

How do I grant a 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@orcl Desktop]$ sqlplus system/oracle SQL> create user abc identified by abc; User created.

How do I recreate a DB Link?

4. How To Recreate Database Links?

Backup the existing database link.
Connect as the database link owner.
Test the database link.
Drop the database link drop database link DB_LINK_NAME;
Create the database link create database link DB_LINK_NAME connect USER identified by PASSWORD using ‘connect_string’;

How do I drop a database in Oracle 12c?

To delete a database using DBCA:

Start DBCA as described in “Starting DBCA”.
In the Database Operation window, select Delete Database and click Next.
Select the database to delete and click Next.

How do I drop standby database?

To shut down a physical standby database, use the SQL*Plus SHUTDOWN command. If the database is performing managed recovery, you must cancel managed recovery operations before issuing the SHUTDOWN command. Control is not returned to the session that initiates a database shutdown until shutdown is complete.

How do I get rid of a private DB Link?

To drop a private DB_LINK either we need to change user password or we need to know user password, Instead of that we can drop DB_LINKS using this procedure. a) Check the existing DB_LINK of user “CKPT”. b) Drop the DB_LINK from “SYS” user. C) Create a procedure as below from “SYS” user.

Can you alter a database link in Oracle?

To alter a public database link, you must have the ALTER PUBLIC DATABASE LINK system privilege. The ALTER DATABASE LINK statement is intended only to update fixed-user database links with the current passwords of connection and authentication users.

How do I grant access to DB Link?

create view REMOTE_X as select * from X@dblink; and then grant access to REMOTE_X to B. SQL> grant connect to demo identified by demo; Grant succeeded. SQL> create view VVV as select * from tab@db11; View created.

How do I grant a database link privilege in Oracle?

Can You Drop a database link in Oracle?

Restriction on Dropping Database Links You cannot drop a database link in another user’s schema, and you cannot qualify dblink with the name of a schema, because periods are permitted in names of database links. Therefore, Oracle Database interprets the entire name, such as ralph.linktosales, as the name…

How to remove a link from a database?

How to create a public 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.

How to create a database link in Oracle Net?

Oracle Net must be installed on both the local and remote Oracle databases. Specify SHARED to use a single network connection to create a public database link that can be shared among multiple users. If you specify SHARED, you must also specify the dblink_authentication clause. Specify PUBLIC to create a public database link available to all users.

How do I drop a database link in Oracle?