Database Links Queries

 Database Links Queries:

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Name of Database
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 SQL> select name from v$database;

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List of DB links
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 set pagesize 100
set lines 200
col host for a20
col db_link for a30
select * from dba_db_links order by created;

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 Using DB Link   --- check if it works correctly
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select 'X' from dual@Name_of_dblink;
selet * from dual@Name_of_dblink;


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Creating DB links
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CREATE DATABASE LINK "Name_of_dblink" CONNECT TO APPS IDENTIFIED BY <PWD> USING 'target_db';